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428
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1 /* The event_stream interface for X11 with Xt, and/or tty frames.
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2 Copyright (C) 1991-5, 1997 Free Software Foundation, Inc.
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3 Copyright (C) 1995 Sun Microsystems, Inc.
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4 Copyright (C) 1996 Ben Wing.
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5
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6 This file is part of XEmacs.
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7
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8 XEmacs is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 2, or (at your option) any
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11 later version.
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12
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13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with XEmacs; see the file COPYING. If not, write to
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20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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21 Boston, MA 02111-1307, USA. */
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22
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23 /* Synched up with: Not in FSF. */
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24
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25 #include <config.h>
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26 #include "lisp.h"
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27
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28 #include "console-x.h"
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29 #include "../lwlib/lwlib.h"
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30 #include "EmacsFrame.h"
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31
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32 #include "blocktype.h"
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33 #include "buffer.h"
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34 #include "console.h"
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35 #include "console-tty.h"
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36 #include "events.h"
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37 #include "frame.h"
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38 #include "objects-x.h"
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39 #include "process.h"
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40 #include "redisplay.h"
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41 #include "elhash.h"
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42
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43 #include "systime.h"
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44 #include "sysproc.h" /* for MAXDESC */
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45
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46 #include "xintrinsicp.h" /* CoreP.h needs this */
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47 #include <X11/CoreP.h> /* Numerous places access the fields of
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48 a core widget directly. We could
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49 use XtGetValues(), but ... */
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50 #include <X11/ShellP.h>
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51
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52 #ifdef HAVE_XIM
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53 #ifdef XIM_MOTIF
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54 #include <Xm/Xm.h>
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55 #endif
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56 #include "lstream.h"
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57 #include "file-coding.h"
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58 #endif
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59
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60 #ifdef HAVE_DRAGNDROP
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61 #include "dragdrop.h"
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62 #endif
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63
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64 #if defined (HAVE_OFFIX_DND)
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65 #include "offix.h"
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66 #endif
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67
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68 #ifdef WINDOWSNT
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69 /* Hmm, under unix we want X modifiers, under NT we want X modifiers if
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70 we are running X and Windows modifiers otherwise.
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71 gak. This is a kludge until we support multiple native GUIs!
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72 */
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73 #undef MOD_ALT
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74 #undef MOD_CONTROL
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75 #undef MOD_SHIFT
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76 #endif
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77
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78 #include "events-mod.h"
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79
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80 static void enqueue_Xt_dispatch_event (Lisp_Object event);
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81 static void handle_focus_event_1 (struct frame *f, int in_p);
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82
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83 static struct event_stream *Xt_event_stream;
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84
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85 /* With the new event model, all events go through XtDispatchEvent()
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86 and are picked up by an event handler that is added to each frame
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87 widget. (This is how it's supposed to be.) In the old method,
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88 Emacs sucks out events directly from XtNextEvent() and only
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89 dispatches the events that it doesn't need to deal with. This
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90 old way has lots of corresponding junk that is no longer
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91 necessary: lwlib extensions, synthetic XAnyEvents, unnecessary
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92 magic events, etc. */
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93
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94 /* The one and only one application context that Emacs uses. */
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95 XtAppContext Xt_app_con;
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96
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97 /* Do we accept events sent by other clients? */
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98 int x_allow_sendevents;
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99
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100 int modifier_keys_are_sticky;
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101
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102 #ifdef DEBUG_XEMACS
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103 int x_debug_events;
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104 #endif
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105
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106 static int process_events_occurred;
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107 static int tty_events_occurred;
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108
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109 /* Mask of bits indicating the descriptors that we wait for input on */
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110 extern SELECT_TYPE input_wait_mask, process_only_mask, tty_only_mask;
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111
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112 static CONST String x_fallback_resources[] =
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113 {
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114 /* This file is automatically generated from the app-defaults file
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115 in ../etc/Emacs.ad. These resources are consulted only if no
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116 app-defaults file is found at all.
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117 */
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118 #include <Emacs.ad.h>
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119 0
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120 };
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121
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122 static Lisp_Object x_keysym_to_emacs_keysym (KeySym keysym, int simple_p);
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123 void emacs_Xt_mapping_action (Widget w, XEvent *event);
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124 void debug_process_finalization (struct Lisp_Process *p);
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125 void emacs_Xt_event_handler (Widget wid, XtPointer closure, XEvent *event,
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126 Boolean *continue_to_dispatch);
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127
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128 static int last_quit_check_signal_tick_count;
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129
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130 Lisp_Object Qkey_mapping;
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131 Lisp_Object Qsans_modifiers;
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132
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133
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134 /************************************************************************/
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135 /* keymap handling */
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136 /************************************************************************/
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137
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138 /* X bogusly doesn't define the interpretations of any bits besides
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139 ModControl, ModShift, and ModLock; so the Interclient Communication
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140 Conventions Manual says that we have to bend over backwards to figure
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141 out what the other modifier bits mean. According to ICCCM:
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142
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143 - Any keycode which is assigned ModControl is a "control" key.
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144
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145 - Any modifier bit which is assigned to a keycode which generates Meta_L
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146 or Meta_R is the modifier bit meaning "meta". Likewise for Super, Hyper,
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147 etc.
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148
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149 - Any keypress event which contains ModControl in its state should be
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150 interpreted as a "control" character.
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151
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152 - Any keypress event which contains a modifier bit in its state which is
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153 generated by a keycode whose corresponding keysym is Meta_L or Meta_R
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154 should be interpreted as a "meta" character. Likewise for Super, Hyper,
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155 etc.
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156
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157 - It is illegal for a keysym to be associated with more than one modifier
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158 bit.
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159
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160 This means that the only thing that emacs can reasonably interpret as a
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161 "meta" key is a key whose keysym is Meta_L or Meta_R, and which generates
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162 one of the modifier bits Mod1-Mod5.
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163
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164 Unfortunately, many keyboards don't have Meta keys in their default
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165 configuration. So, if there are no Meta keys, but there are "Alt" keys,
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166 emacs will interpret Alt as Meta. If there are both Meta and Alt keys,
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167 then the Meta keys mean "Meta", and the Alt keys mean "Alt" (it used to
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168 mean "Symbol," but that just confused the hell out of way too many people).
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169
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170 This works with the default configurations of the 19 keyboard-types I've
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171 checked.
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172
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173 Emacs detects keyboard configurations which violate the above rules, and
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174 prints an error message on the standard-error-output. (Perhaps it should
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175 use a pop-up-window instead.)
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176 */
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177
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178 static void
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179 x_reset_key_mapping (struct device *d)
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180 {
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181 Display *display = DEVICE_X_DISPLAY (d);
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182 struct x_device *xd = DEVICE_X_DATA (d);
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183 KeySym *keysym, *keysym_end;
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184 Lisp_Object hash_table;
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185 int key_code_count, keysyms_per_code;
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186
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187 if (xd->x_keysym_map)
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188 XFree ((char *) xd->x_keysym_map);
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189 XDisplayKeycodes (display,
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190 &xd->x_keysym_map_min_code,
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191 &xd->x_keysym_map_max_code);
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192 key_code_count = xd->x_keysym_map_max_code - xd->x_keysym_map_min_code + 1;
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193 xd->x_keysym_map =
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194 XGetKeyboardMapping (display, xd->x_keysym_map_min_code, key_code_count,
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195 &xd->x_keysym_map_keysyms_per_code);
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196
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197 hash_table = xd->x_keysym_map_hash_table;
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198 if (HASH_TABLEP (hash_table))
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199 Fclrhash (hash_table);
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200 else
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201 xd->x_keysym_map_hash_table = hash_table =
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202 make_lisp_hash_table (128, HASH_TABLE_NON_WEAK, HASH_TABLE_EQUAL);
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203
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204 for (keysym = xd->x_keysym_map,
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205 keysyms_per_code = xd->x_keysym_map_keysyms_per_code,
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206 keysym_end = keysym + (key_code_count * keysyms_per_code);
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207 keysym < keysym_end;
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208 keysym += keysyms_per_code)
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209 {
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210 int j;
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211
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212 if (keysym[0] == NoSymbol)
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213 continue;
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214
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215 {
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216 char *name = XKeysymToString (keysym[0]);
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217 Lisp_Object sym = x_keysym_to_emacs_keysym (keysym[0], 0);
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218 if (name)
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219 {
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220 Fputhash (build_string (name), Qsans_modifiers, hash_table);
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221 Fputhash (sym, Qsans_modifiers, hash_table);
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222 }
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223 }
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224
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225 for (j = 1; j < keysyms_per_code; j++)
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226 {
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227 if (keysym[j] != keysym[0] &&
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228 keysym[j] != NoSymbol)
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229 {
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230 char *name = XKeysymToString (keysym[j]);
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231 Lisp_Object sym = x_keysym_to_emacs_keysym (keysym[j], 0);
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232 if (name && NILP (Fgethash (sym, hash_table, Qnil)))
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233 {
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234 Fputhash (build_string (name), Qt, hash_table);
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235 Fputhash (sym, Qt, hash_table);
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236 }
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237 }
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238 }
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239 }
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240 }
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241
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242 static CONST char *
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243 index_to_name (int indice)
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244 {
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245 switch (indice)
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246 {
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247 case ShiftMapIndex: return "ModShift";
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248 case LockMapIndex: return "ModLock";
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249 case ControlMapIndex: return "ModControl";
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250 case Mod1MapIndex: return "Mod1";
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251 case Mod2MapIndex: return "Mod2";
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252 case Mod3MapIndex: return "Mod3";
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253 case Mod4MapIndex: return "Mod4";
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254 case Mod5MapIndex: return "Mod5";
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255 default: return "???";
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256 }
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257 }
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258
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259 /* Boy, I really wish C had local functions... */
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260 struct c_doesnt_have_closures /* #### not yet used */
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261 {
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262 int warned_about_overlapping_modifiers;
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263 int warned_about_predefined_modifiers;
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264 int warned_about_duplicate_modifiers;
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265 int meta_bit;
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266 int hyper_bit;
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267 int super_bit;
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268 int alt_bit;
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269 int mode_bit;
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270 };
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271
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272 static void
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273 x_reset_modifier_mapping (struct device *d)
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274 {
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275 Display *display = DEVICE_X_DISPLAY (d);
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276 struct x_device *xd = DEVICE_X_DATA (d);
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277 int modifier_index, modifier_key, column, mkpm;
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278 int warned_about_overlapping_modifiers = 0;
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279 int warned_about_predefined_modifiers = 0;
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280 int warned_about_duplicate_modifiers = 0;
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281 int meta_bit = 0;
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282 int hyper_bit = 0;
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283 int super_bit = 0;
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284 int alt_bit = 0;
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285 int mode_bit = 0;
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286
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287 xd->lock_interpretation = 0;
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288
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289 if (xd->x_modifier_keymap)
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290 XFreeModifiermap (xd->x_modifier_keymap);
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291
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292 x_reset_key_mapping (d);
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293
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294 xd->x_modifier_keymap = XGetModifierMapping (display);
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295
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296 /* Boy, I really wish C had local functions...
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297 */
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298
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299 /* The call to warn_when_safe must be on the same line as the string or
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300 make-msgfile won't pick it up properly (the newline doesn't confuse
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301 it, but the backslash does). */
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302
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303 #define modwarn(name,old,other) \
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304 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates %s, which is generated by %s.", \
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305 name, code, index_to_name (old), other), \
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306 warned_about_overlapping_modifiers = 1
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307
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308 #define modbarf(name,other) \
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309 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates %s, which is nonsensical.", \
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310 name, code, other), \
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311 warned_about_predefined_modifiers = 1
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312
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313 #define check_modifier(name,mask) \
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314 if ((1<<modifier_index) != mask) \
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315 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates %s, which is nonsensical.", \
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316 name, code, index_to_name (modifier_index)), \
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317 warned_about_predefined_modifiers = 1
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318
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319 #define store_modifier(name,old) \
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320 if (old && old != modifier_index) \
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321 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates both %s and %s, which is nonsensical.",\
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322 name, code, index_to_name (old), \
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323 index_to_name (modifier_index)), \
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324 warned_about_duplicate_modifiers = 1; \
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325 if (modifier_index == ShiftMapIndex) modbarf (name,"ModShift"); \
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326 else if (modifier_index == LockMapIndex) modbarf (name,"ModLock"); \
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327 else if (modifier_index == ControlMapIndex) modbarf (name,"ModControl"); \
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328 else if (sym == XK_Mode_switch) \
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329 mode_bit = modifier_index; /* Mode_switch is special, see below... */ \
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330 else if (modifier_index == meta_bit && old != meta_bit) \
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331 modwarn (name, meta_bit, "Meta"); \
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332 else if (modifier_index == super_bit && old != super_bit) \
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333 modwarn (name, super_bit, "Super"); \
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334 else if (modifier_index == hyper_bit && old != hyper_bit) \
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335 modwarn (name, hyper_bit, "Hyper"); \
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336 else if (modifier_index == alt_bit && old != alt_bit) \
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337 modwarn (name, alt_bit, "Alt"); \
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338 else \
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339 old = modifier_index;
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340
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341 mkpm = xd->x_modifier_keymap->max_keypermod;
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342 for (modifier_index = 0; modifier_index < 8; modifier_index++)
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343 for (modifier_key = 0; modifier_key < mkpm; modifier_key++) {
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344 KeySym last_sym = 0;
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345 for (column = 0; column < 4; column += 2) {
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346 KeyCode code = xd->x_modifier_keymap->modifiermap[modifier_index * mkpm
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347 + modifier_key];
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348 KeySym sym = (code ? XKeycodeToKeysym (display, code, column) : 0);
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349 if (sym == last_sym) continue;
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350 last_sym = sym;
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351 switch (sym) {
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352 case XK_Mode_switch:store_modifier ("Mode_switch", mode_bit); break;
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353 case XK_Meta_L: store_modifier ("Meta_L", meta_bit); break;
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354 case XK_Meta_R: store_modifier ("Meta_R", meta_bit); break;
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355 case XK_Super_L: store_modifier ("Super_L", super_bit); break;
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356 case XK_Super_R: store_modifier ("Super_R", super_bit); break;
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357 case XK_Hyper_L: store_modifier ("Hyper_L", hyper_bit); break;
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358 case XK_Hyper_R: store_modifier ("Hyper_R", hyper_bit); break;
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359 case XK_Alt_L: store_modifier ("Alt_L", alt_bit); break;
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360 case XK_Alt_R: store_modifier ("Alt_R", alt_bit); break;
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361 case XK_Control_L: check_modifier ("Control_L", ControlMask); break;
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362 case XK_Control_R: check_modifier ("Control_R", ControlMask); break;
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363 case XK_Shift_L: check_modifier ("Shift_L", ShiftMask); break;
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364 case XK_Shift_R: check_modifier ("Shift_R", ShiftMask); break;
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365 case XK_Shift_Lock: check_modifier ("Shift_Lock", LockMask);
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366 xd->lock_interpretation = XK_Shift_Lock; break;
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367 case XK_Caps_Lock: check_modifier ("Caps_Lock", LockMask);
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368 xd->lock_interpretation = XK_Caps_Lock; break;
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369
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370 /* It probably doesn't make any sense for a modifier bit to be
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371 assigned to a key that is not one of the above, but OpenWindows
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|
372 assigns modifier bits to a couple of random function keys for
|
|
|
373 no reason that I can discern, so printing a warning here would
|
|
|
374 be annoying. */
|
|
|
375 }
|
|
|
376 }
|
|
|
377 }
|
|
|
378 #undef store_modifier
|
|
|
379 #undef check_modifier
|
|
|
380 #undef modwarn
|
|
|
381 #undef modbarf
|
|
|
382
|
|
|
383 /* If there was no Meta key, then try using the Alt key instead.
|
|
|
384 If there is both a Meta key and an Alt key, then the Alt key
|
|
|
385 is not disturbed and remains an Alt key. */
|
|
|
386 if (! meta_bit && alt_bit)
|
|
|
387 meta_bit = alt_bit, alt_bit = 0;
|
|
|
388
|
|
|
389 /* mode_bit overrides everything, since it's processed down inside of
|
|
|
390 XLookupString() instead of by us. If Meta and Mode_switch both
|
|
|
391 generate the same modifier bit (which is an error), then we don't
|
|
|
392 interpret that bit as Meta, because we can't make XLookupString()
|
|
|
393 not interpret it as Mode_switch; and interpreting it as both would
|
|
|
394 be totally wrong. */
|
|
|
395 if (mode_bit)
|
|
|
396 {
|
|
|
397 CONST char *warn = 0;
|
|
|
398 if (mode_bit == meta_bit) warn = "Meta", meta_bit = 0;
|
|
|
399 else if (mode_bit == hyper_bit) warn = "Hyper", hyper_bit = 0;
|
|
|
400 else if (mode_bit == super_bit) warn = "Super", super_bit = 0;
|
|
|
401 else if (mode_bit == alt_bit) warn = "Alt", alt_bit = 0;
|
|
|
402 if (warn)
|
|
|
403 {
|
|
|
404 warn_when_safe
|
|
|
405 (Qkey_mapping, Qwarning,
|
|
|
406 "XEmacs: %s is being used for both Mode_switch and %s.",
|
|
|
407 index_to_name (mode_bit), warn),
|
|
|
408 warned_about_overlapping_modifiers = 1;
|
|
|
409 }
|
|
|
410 }
|
|
|
411 #undef index_to_name
|
|
|
412
|
|
|
413 xd->MetaMask = (meta_bit ? (1 << meta_bit) : 0);
|
|
|
414 xd->HyperMask = (hyper_bit ? (1 << hyper_bit) : 0);
|
|
|
415 xd->SuperMask = (super_bit ? (1 << super_bit) : 0);
|
|
|
416 xd->AltMask = (alt_bit ? (1 << alt_bit) : 0);
|
|
|
417 xd->ModeMask = (mode_bit ? (1 << mode_bit) : 0); /* unused */
|
|
|
418
|
|
|
419
|
|
|
420 if (warned_about_overlapping_modifiers)
|
|
|
421 warn_when_safe (Qkey_mapping, Qwarning, "\n"
|
|
|
422 " Two distinct modifier keys (such as Meta and Hyper) cannot generate\n"
|
|
|
423 " the same modifier bit, because Emacs won't be able to tell which\n"
|
|
|
424 " modifier was actually held down when some other key is pressed. It\n"
|
|
|
425 " won't be able to tell Meta-x and Hyper-x apart, for example. Change\n"
|
|
|
426 " one of these keys to use some other modifier bit. If you intend for\n"
|
|
|
427 " these keys to have the same behavior, then change them to have the\n"
|
|
|
428 " same keysym as well as the same modifier bit.");
|
|
|
429
|
|
|
430 if (warned_about_predefined_modifiers)
|
|
|
431 warn_when_safe (Qkey_mapping, Qwarning, "\n"
|
|
|
432 " The semantics of the modifier bits ModShift, ModLock, and ModControl\n"
|
|
|
433 " are predefined. It does not make sense to assign ModControl to any\n"
|
|
|
434 " keysym other than Control_L or Control_R, or to assign any modifier\n"
|
|
|
435 " bits to the \"control\" keysyms other than ModControl. You can't\n"
|
|
|
436 " turn a \"control\" key into a \"meta\" key (or vice versa) by simply\n"
|
|
|
437 " assigning the key a different modifier bit. You must also make that\n"
|
|
|
438 " key generate an appropriate keysym (Control_L, Meta_L, etc).");
|
|
|
439
|
|
|
440 /* No need to say anything more for warned_about_duplicate_modifiers. */
|
|
|
441
|
|
|
442 if (warned_about_overlapping_modifiers || warned_about_predefined_modifiers)
|
|
|
443 warn_when_safe (Qkey_mapping, Qwarning, "\n"
|
|
|
444 " The meanings of the modifier bits Mod1 through Mod5 are determined\n"
|
|
|
445 " by the keysyms used to control those bits. Mod1 does NOT always\n"
|
|
|
446 " mean Meta, although some non-ICCCM-compliant programs assume that.");
|
|
|
447 }
|
|
|
448
|
|
|
449 void
|
|
|
450 x_init_modifier_mapping (struct device *d)
|
|
|
451 {
|
|
|
452 struct x_device *xd = DEVICE_X_DATA (d);
|
|
|
453 xd->x_keysym_map_hash_table = Qnil;
|
|
|
454 xd->x_keysym_map = NULL;
|
|
|
455 xd->x_modifier_keymap = NULL;
|
|
|
456 x_reset_modifier_mapping (d);
|
|
|
457 }
|
|
|
458
|
|
|
459 static int
|
|
|
460 x_key_is_modifier_p (KeyCode keycode, struct device *d)
|
|
|
461 {
|
|
|
462 struct x_device *xd = DEVICE_X_DATA (d);
|
|
|
463 KeySym *syms;
|
|
|
464 int i;
|
|
|
465
|
|
|
466 if (keycode < xd->x_keysym_map_min_code ||
|
|
|
467 keycode > xd->x_keysym_map_max_code)
|
|
|
468 return 0;
|
|
|
469
|
|
|
470 syms = &xd->x_keysym_map [(keycode - xd->x_keysym_map_min_code) *
|
|
|
471 xd->x_keysym_map_keysyms_per_code];
|
|
|
472 for (i = 0; i < xd->x_keysym_map_keysyms_per_code; i++)
|
|
|
473 if (IsModifierKey (syms [i]) ||
|
|
|
474 syms [i] == XK_Mode_switch) /* why doesn't IsModifierKey count this? */
|
|
|
475 return 1;
|
|
|
476 return 0;
|
|
|
477 }
|
|
|
478
|
|
|
479 /* key-handling code is always ugly. It just ends up working out
|
|
|
480 that way.
|
|
|
481
|
|
|
482 Here are some pointers:
|
|
|
483
|
|
|
484 -- DOWN_MASK indicates which modifiers should be treated as "down"
|
|
|
485 when the corresponding upstroke happens. It gets reset for
|
|
|
486 a particular modifier when that modifier goes up, and reset
|
|
|
487 for all modifiers when a non-modifier key is pressed. Example:
|
|
|
488
|
|
|
489 I press Control-A-Shift and then release Control-A-Shift.
|
|
|
490 I want the Shift key to be sticky but not the Control key.
|
|
|
491
|
|
|
492 -- LAST_DOWNKEY and RELEASE_TIME are used to keep track of
|
|
|
493 auto-repeat -- see below.
|
|
|
494
|
|
|
495 -- If a modifier key is sticky, I can unstick it by pressing
|
|
|
496 the modifier key again. */
|
|
|
497
|
|
|
498 static void
|
|
|
499 x_handle_sticky_modifiers (XEvent *ev, struct device *d)
|
|
|
500 {
|
|
|
501 struct x_device *xd;
|
|
|
502 KeyCode keycode;
|
|
|
503 int type;
|
|
|
504
|
|
|
505 if (!modifier_keys_are_sticky) /* Optimize for non-sticky modifiers */
|
|
|
506 return;
|
|
|
507
|
|
|
508 xd = DEVICE_X_DATA (d);
|
|
|
509 keycode = ev->xkey.keycode;
|
|
|
510 type = ev->type;
|
|
|
511
|
|
|
512 if (keycode < xd->x_keysym_map_min_code ||
|
|
|
513 keycode > xd->x_keysym_map_max_code)
|
|
|
514 return;
|
|
|
515
|
|
|
516 if (! ((type == KeyPress || type == KeyRelease) &&
|
|
|
517 x_key_is_modifier_p (keycode, d)))
|
|
|
518 { /* Not a modifier key */
|
|
|
519 Bool key_event_p = (type == KeyPress || type == KeyRelease);
|
|
|
520
|
|
|
521 if (type == KeyPress && !xd->last_downkey)
|
|
|
522 xd->last_downkey = keycode;
|
|
|
523 else if (type == ButtonPress ||
|
|
|
524 (type == KeyPress && xd->last_downkey &&
|
|
|
525 (keycode != xd->last_downkey ||
|
|
|
526 ev->xkey.time != xd->release_time)))
|
|
|
527 {
|
|
|
528 xd->need_to_add_mask = 0;
|
|
|
529 xd->last_downkey = 0;
|
|
|
530 }
|
|
|
531 if (type == KeyPress)
|
|
|
532 xd->release_time = 0;
|
|
|
533 if (type == KeyPress || type == ButtonPress)
|
|
|
534 xd->down_mask = 0;
|
|
|
535
|
|
|
536 if (key_event_p)
|
|
|
537 ev->xkey.state |= xd->need_to_add_mask;
|
|
|
538 else
|
|
|
539 ev->xbutton.state |= xd->need_to_add_mask;
|
|
|
540
|
|
|
541 if (type == KeyRelease && keycode == xd->last_downkey)
|
|
|
542 /* If I hold press-and-release the Control key and then press
|
|
|
543 and hold down the right arrow, I want it to auto-repeat
|
|
|
544 Control-Right. On the other hand, if I do the same but
|
|
|
545 manually press the Right arrow a bunch of times, I want
|
|
|
546 to see one Control-Right and then a bunch of Rights.
|
|
|
547 This means that we need to distinguish between an
|
|
|
548 auto-repeated key and a key pressed and released a bunch
|
|
|
549 of times.
|
|
|
550
|
|
|
551 Naturally, the designers of the X spec didn't see fit
|
|
|
552 to provide an obvious way to distinguish these cases.
|
|
|
553 So we assume that if the release and the next press
|
|
|
554 occur at the same time, the key was actually auto-
|
|
|
555 repeated. Under Open-Windows, at least, this works. */
|
|
|
556 xd->release_time = key_event_p ? ev->xkey.time : ev->xbutton.time;
|
|
|
557 }
|
|
|
558 else /* Modifier key pressed */
|
|
|
559 {
|
|
|
560 int i;
|
|
|
561 KeySym *syms = &xd->x_keysym_map [(keycode - xd->x_keysym_map_min_code) *
|
|
|
562 xd->x_keysym_map_keysyms_per_code];
|
|
|
563
|
|
|
564 /* If a non-modifier key was pressed in the middle of a bunch
|
|
|
565 of modifiers, then it unsticks all the modifiers that were
|
|
|
566 previously pressed. We cannot unstick the modifiers until
|
|
|
567 now because we want to check for auto-repeat of the
|
|
|
568 non-modifier key. */
|
|
|
569
|
|
|
570 if (xd->last_downkey)
|
|
|
571 {
|
|
|
572 xd->last_downkey = 0;
|
|
|
573 xd->need_to_add_mask = 0;
|
|
|
574 }
|
|
|
575
|
|
|
576 #define FROB(mask) \
|
|
|
577 do { \
|
|
|
578 if (type == KeyPress) \
|
|
|
579 { \
|
|
|
580 /* If modifier key is already sticky, \
|
|
|
581 then unstick it. Note that we do \
|
|
|
582 not test down_mask to deal with the \
|
|
|
583 unlikely but possible case that the \
|
|
|
584 modifier key auto-repeats. */ \
|
|
|
585 if (xd->need_to_add_mask & mask) \
|
|
|
586 { \
|
|
|
587 xd->need_to_add_mask &= ~mask; \
|
|
|
588 xd->down_mask &= ~mask; \
|
|
|
589 } \
|
|
|
590 else \
|
|
|
591 xd->down_mask |= mask; \
|
|
|
592 } \
|
|
|
593 else \
|
|
|
594 { \
|
|
|
595 if (xd->down_mask & mask) \
|
|
|
596 { \
|
|
|
597 xd->down_mask &= ~mask; \
|
|
|
598 xd->need_to_add_mask |= mask; \
|
|
|
599 } \
|
|
|
600 } \
|
|
|
601 } while (0)
|
|
|
602
|
|
|
603 for (i = 0; i < xd->x_keysym_map_keysyms_per_code; i++)
|
|
|
604 switch (syms[i])
|
|
|
605 {
|
|
|
606 case XK_Control_L: case XK_Control_R: FROB (ControlMask); break;
|
|
|
607 case XK_Shift_L: case XK_Shift_R: FROB (ShiftMask); break;
|
|
|
608 case XK_Meta_L: case XK_Meta_R: FROB (xd->MetaMask); break;
|
|
|
609 case XK_Super_L: case XK_Super_R: FROB (xd->SuperMask); break;
|
|
|
610 case XK_Hyper_L: case XK_Hyper_R: FROB (xd->HyperMask); break;
|
|
|
611 case XK_Alt_L: case XK_Alt_R: FROB (xd->AltMask); break;
|
|
|
612 }
|
|
|
613 }
|
|
|
614 #undef FROB
|
|
|
615 }
|
|
|
616
|
|
|
617 static void
|
|
|
618 clear_sticky_modifiers (struct device *d)
|
|
|
619 {
|
|
|
620 struct x_device *xd = DEVICE_X_DATA (d);
|
|
|
621
|
|
|
622 xd->need_to_add_mask = 0;
|
|
|
623 xd->last_downkey = 0;
|
|
|
624 xd->release_time = 0;
|
|
|
625 xd->down_mask = 0;
|
|
|
626 }
|
|
|
627
|
|
|
628 static int
|
|
|
629 keysym_obeys_caps_lock_p (KeySym sym, struct device *d)
|
|
|
630 {
|
|
|
631 struct x_device *xd = DEVICE_X_DATA (d);
|
|
|
632 /* Eeeeevil hack. Don't apply Caps_Lock to things that aren't alphabetic
|
|
|
633 characters, where "alphabetic" means something more than simply A-Z.
|
|
|
634 That is, if Caps_Lock is down, typing ESC doesn't produce Shift-ESC.
|
|
|
635 But if shift-lock is down, then it does. */
|
|
|
636 if (xd->lock_interpretation == XK_Shift_Lock)
|
|
|
637 return 1;
|
|
|
638
|
|
|
639 return
|
|
|
640 ((sym >= XK_A) && (sym <= XK_Z)) ||
|
|
|
641 ((sym >= XK_a) && (sym <= XK_z)) ||
|
|
|
642 ((sym >= XK_Agrave) && (sym <= XK_Odiaeresis)) ||
|
|
|
643 ((sym >= XK_agrave) && (sym <= XK_odiaeresis)) ||
|
|
|
644 ((sym >= XK_Ooblique) && (sym <= XK_Thorn)) ||
|
|
|
645 ((sym >= XK_oslash) && (sym <= XK_thorn));
|
|
|
646 }
|
|
|
647
|
|
|
648 /* called from EmacsFrame.c (actually from Xt itself) when a
|
|
|
649 MappingNotify event is received. In its infinite wisdom, Xt
|
|
|
650 decided that Xt event handlers never get MappingNotify events.
|
|
|
651 O'Reilly Xt Programming Manual 9.1.2 says:
|
|
|
652
|
|
|
653 MappingNotify is automatically handled by Xt, so it isn't passed
|
|
|
654 to event handlers and you don't need to worry about it.
|
|
|
655
|
|
|
656 Of course, we DO worry about it, so we need a special translation. */
|
|
|
657 void
|
|
|
658 emacs_Xt_mapping_action (Widget w, XEvent* event)
|
|
|
659 {
|
|
|
660 struct device *d = get_device_from_display (event->xany.display);
|
|
|
661
|
|
|
662 if (DEVICE_X_BEING_DELETED (d))
|
|
|
663 return;
|
|
|
664 #if 0
|
|
|
665 /* nyet. Now this is handled by Xt. */
|
|
|
666 XRefreshKeyboardMapping (&event->xmapping);
|
|
|
667 #endif
|
|
|
668 /* xmodmap generates about a billion MappingKeyboard events, followed
|
|
|
669 by a single MappingModifier event, so it might be worthwhile to
|
|
|
670 take extra MappingKeyboard events out of the queue before requesting
|
|
|
671 the current keymap from the server. */
|
|
|
672 switch (event->xmapping.request)
|
|
|
673 {
|
|
|
674 case MappingKeyboard: x_reset_key_mapping (d); break;
|
|
|
675 case MappingModifier: x_reset_modifier_mapping (d); break;
|
|
|
676 case MappingPointer: /* Do something here? */ break;
|
|
|
677 default: abort();
|
|
|
678 }
|
|
|
679 }
|
|
|
680
|
|
|
681
|
|
|
682 /************************************************************************/
|
|
|
683 /* X to Emacs event conversion */
|
|
|
684 /************************************************************************/
|
|
|
685
|
|
|
686 static Lisp_Object
|
|
|
687 x_keysym_to_emacs_keysym (KeySym keysym, int simple_p)
|
|
|
688 {
|
|
|
689 char *name;
|
|
|
690 if (keysym >= XK_exclam && keysym <= XK_asciitilde)
|
|
|
691 /* We must assume that the X keysym numbers for the ASCII graphic
|
|
|
692 characters are the same as their ASCII codes. */
|
|
|
693 return make_char (keysym);
|
|
|
694
|
|
|
695 switch (keysym)
|
|
|
696 {
|
|
|
697 /* These would be handled correctly by the default case, but by
|
|
|
698 special-casing them here we don't garbage a string or call
|
|
|
699 intern(). */
|
|
|
700 case XK_BackSpace: return QKbackspace;
|
|
|
701 case XK_Tab: return QKtab;
|
|
|
702 case XK_Linefeed: return QKlinefeed;
|
|
|
703 case XK_Return: return QKreturn;
|
|
|
704 case XK_Escape: return QKescape;
|
|
|
705 case XK_space: return QKspace;
|
|
|
706 case XK_Delete: return QKdelete;
|
|
|
707 case 0: return Qnil;
|
|
|
708 default:
|
|
|
709 if (simple_p) return Qnil;
|
|
|
710 /* !!#### not Mule-ized */
|
|
|
711 name = XKeysymToString (keysym);
|
|
|
712 if (!name || !name[0])
|
|
|
713 /* This happens if there is a mismatch between the Xlib of
|
|
|
714 XEmacs and the Xlib of the X server...
|
|
|
715
|
|
|
716 Let's hard-code in some knowledge of common keysyms introduced
|
|
|
717 in recent X11 releases. Snarfed from X11/keysymdef.h
|
|
|
718
|
|
|
719 Probably we should add some stuff here for X11R6. */
|
|
|
720 switch (keysym)
|
|
|
721 {
|
|
|
722 case 0xFF95: return KEYSYM ("kp-home");
|
|
|
723 case 0xFF96: return KEYSYM ("kp-left");
|
|
|
724 case 0xFF97: return KEYSYM ("kp-up");
|
|
|
725 case 0xFF98: return KEYSYM ("kp-right");
|
|
|
726 case 0xFF99: return KEYSYM ("kp-down");
|
|
|
727 case 0xFF9A: return KEYSYM ("kp-prior");
|
|
|
728 case 0xFF9B: return KEYSYM ("kp-next");
|
|
|
729 case 0xFF9C: return KEYSYM ("kp-end");
|
|
|
730 case 0xFF9D: return KEYSYM ("kp-begin");
|
|
|
731 case 0xFF9E: return KEYSYM ("kp-insert");
|
|
|
732 case 0xFF9F: return KEYSYM ("kp-delete");
|
|
|
733
|
|
|
734 case 0x1005FF10: return KEYSYM ("SunF36"); /* labeled F11 */
|
|
|
735 case 0x1005FF11: return KEYSYM ("SunF37"); /* labeled F12 */
|
|
|
736 default:
|
|
|
737 {
|
|
|
738 char buf [64];
|
|
|
739 sprintf (buf, "unknown-keysym-0x%X", (int) keysym);
|
|
|
740 return KEYSYM (buf);
|
|
|
741 }
|
|
|
742 }
|
|
|
743 /* If it's got a one-character name, that's good enough. */
|
|
|
744 if (!name[1])
|
|
|
745 return make_char (name[0]);
|
|
|
746
|
|
|
747 /* If it's in the "Keyboard" character set, downcase it.
|
|
|
748 The case of those keysyms is too totally random for us to
|
|
|
749 force anyone to remember them.
|
|
|
750 The case of the other character sets is significant, however.
|
|
|
751 */
|
|
|
752 if ((((unsigned int) keysym) & (~0x1FF)) == ((unsigned int) 0xFE00))
|
|
|
753 {
|
|
|
754 char buf [255];
|
|
|
755 char *s1, *s2;
|
|
|
756 for (s1 = name, s2 = buf; *s1; s1++, s2++) {
|
|
|
757 if (*s1 == '_') {
|
|
|
758 *s2 = '-';
|
|
|
759 } else {
|
|
|
760 *s2 = tolower (* (unsigned char *) s1);
|
|
|
761 }
|
|
|
762 }
|
|
|
763 *s2 = 0;
|
|
|
764 return KEYSYM (buf);
|
|
|
765 }
|
|
|
766 return KEYSYM (name);
|
|
|
767 }
|
|
|
768 }
|
|
|
769
|
|
|
770 static Lisp_Object
|
|
|
771 x_to_emacs_keysym (XKeyPressedEvent *event, int simple_p)
|
|
|
772 /* simple_p means don't try too hard (ASCII only) */
|
|
|
773 {
|
|
|
774 KeySym keysym = 0;
|
|
|
775
|
|
|
776 #ifdef HAVE_XIM
|
|
|
777 int len;
|
|
|
778 char buffer[64];
|
|
|
779 char *bufptr = buffer;
|
|
|
780 int bufsiz = sizeof (buffer);
|
|
|
781 Status status;
|
|
|
782 #ifdef XIM_XLIB
|
|
|
783 XIC xic = FRAME_X_XIC (x_any_window_to_frame
|
|
|
784 (get_device_from_display (event->display),
|
|
|
785 event->window));
|
|
|
786 #endif /* XIM_XLIB */
|
|
|
787 #endif /* HAVE_XIM */
|
|
|
788
|
|
|
789 /* We use XLookupString if we're not using XIM, or are using
|
|
|
790 XIM_XLIB but input context creation failed. */
|
|
|
791 #if ! (defined (HAVE_XIM) && defined (XIM_MOTIF))
|
|
|
792 #if defined (HAVE_XIM) && defined (XIM_XLIB)
|
|
|
793 if (!xic)
|
|
|
794 #endif /* XIM_XLIB */
|
|
|
795 {
|
|
|
796 /* Apparently it's necessary to specify a dummy here (rather
|
|
|
797 than passing in 0) to avoid crashes on German IRIX */
|
|
|
798 char dummy[256];
|
|
|
799 XLookupString (event, dummy, 200, &keysym, 0);
|
|
|
800 return (IsModifierKey (keysym) || keysym == XK_Mode_switch )
|
|
|
801 ? Qnil : x_keysym_to_emacs_keysym (keysym, simple_p);
|
|
|
802 }
|
|
|
803 #endif /* ! XIM_MOTIF */
|
|
|
804
|
|
|
805 #ifdef HAVE_XIM
|
|
|
806 Lookup_String: /* Come-From XBufferOverflow */
|
|
|
807 #ifdef XIM_MOTIF
|
|
|
808 len = XmImMbLookupString (XtWindowToWidget (event->display, event->window),
|
|
|
809 event, bufptr, bufsiz, &keysym, &status);
|
|
|
810 #else /* XIM_XLIB */
|
|
|
811 if (xic)
|
|
|
812 len = XmbLookupString (xic, event, bufptr, bufsiz, &keysym, &status);
|
|
|
813 #endif /* HAVE_XIM */
|
|
|
814
|
|
|
815 #ifdef DEBUG_XEMACS
|
|
|
816 if (x_debug_events > 0)
|
|
|
817 {
|
|
|
818 stderr_out (" status=");
|
|
|
819 #define print_status_when(S) if (status == S) stderr_out (#S)
|
|
|
820 print_status_when (XLookupKeySym);
|
|
|
821 print_status_when (XLookupBoth);
|
|
|
822 print_status_when (XLookupChars);
|
|
|
823 print_status_when (XLookupNone);
|
|
|
824 print_status_when (XBufferOverflow);
|
|
|
825
|
|
|
826 if (status == XLookupKeySym || status == XLookupBoth)
|
|
|
827 stderr_out (" keysym=%s", XKeysymToString (keysym));
|
|
|
828 if (status == XLookupChars || status == XLookupBoth)
|
|
|
829 {
|
|
|
830 if (len != 1)
|
|
|
831 {
|
|
|
832 int j;
|
|
|
833 stderr_out (" chars=\"");
|
|
|
834 for (j=0; j<len; j++)
|
|
|
835 stderr_out ("%c", bufptr[j]);
|
|
|
836 stderr_out ("\"");
|
|
|
837 }
|
|
|
838 else if (bufptr[0] <= 32 || bufptr[0] >= 127)
|
|
|
839 stderr_out (" char=0x%x", bufptr[0]);
|
|
|
840 else
|
|
|
841 stderr_out (" char=%c", bufptr[0]);
|
|
|
842 }
|
|
|
843 stderr_out ("\n");
|
|
|
844 }
|
|
|
845 #endif /* DEBUG_XEMACS */
|
|
|
846
|
|
|
847 switch (status)
|
|
|
848 {
|
|
|
849 case XLookupKeySym:
|
|
|
850 case XLookupBoth:
|
|
|
851 return (IsModifierKey (keysym) || keysym == XK_Mode_switch )
|
|
|
852 ? Qnil : x_keysym_to_emacs_keysym (keysym, simple_p);
|
|
|
853
|
|
|
854 case XLookupChars:
|
|
|
855 {
|
|
|
856 /* Generate multiple emacs events */
|
|
|
857 struct device *d = get_device_from_display (event->display);
|
|
|
858 Emchar ch;
|
|
|
859 Lisp_Object instream, fb_instream;
|
|
|
860 Lstream *istr;
|
|
|
861 struct gcpro gcpro1, gcpro2;
|
|
|
862
|
|
|
863 fb_instream =
|
|
|
864 make_fixed_buffer_input_stream ((unsigned char *) bufptr, len);
|
|
|
865
|
|
|
866 /* ### Use Fget_coding_system (Vcomposed_input_coding_system) */
|
|
|
867 instream =
|
|
|
868 make_decoding_input_stream (XLSTREAM (fb_instream),
|
|
|
869 Fget_coding_system (Qundecided));
|
|
|
870
|
|
|
871 istr = XLSTREAM (instream);
|
|
|
872
|
|
|
873 GCPRO2 (instream, fb_instream);
|
|
|
874 while ((ch = Lstream_get_emchar (istr)) != EOF)
|
|
|
875 {
|
|
|
876 Lisp_Object emacs_event = Fmake_event (Qnil, Qnil);
|
|
|
877 struct Lisp_Event *ev = XEVENT (emacs_event);
|
|
|
878 ev->channel = DEVICE_CONSOLE (d);
|
|
|
879 ev->event_type = key_press_event;
|
|
|
880 ev->timestamp = event->time;
|
|
|
881 ev->event.key.modifiers = 0;
|
|
|
882 ev->event.key.keysym = make_char (ch);
|
|
|
883 enqueue_Xt_dispatch_event (emacs_event);
|
|
|
884 }
|
|
|
885 Lstream_close (istr);
|
|
|
886 UNGCPRO;
|
|
|
887 Lstream_delete (istr);
|
|
|
888 Lstream_delete (XLSTREAM (fb_instream));
|
|
|
889 return Qnil;
|
|
|
890 }
|
|
|
891 case XLookupNone: return Qnil;
|
|
|
892 case XBufferOverflow:
|
|
|
893 bufptr = (char *) alloca (len+1);
|
|
|
894 bufsiz = len+1;
|
|
|
895 goto Lookup_String;
|
|
|
896 }
|
|
|
897 return Qnil; /* not reached */
|
|
|
898 #endif /* HAVE_XIM */
|
|
|
899 }
|
|
|
900
|
|
|
901 static void
|
|
|
902 set_last_server_timestamp (struct device *d, XEvent *x_event)
|
|
|
903 {
|
|
|
904 Time t;
|
|
|
905 switch (x_event->type)
|
|
|
906 {
|
|
|
907 case KeyPress:
|
|
|
908 case KeyRelease: t = x_event->xkey.time; break;
|
|
|
909 case ButtonPress:
|
|
|
910 case ButtonRelease: t = x_event->xbutton.time; break;
|
|
|
911 case EnterNotify:
|
|
|
912 case LeaveNotify: t = x_event->xcrossing.time; break;
|
|
|
913 case MotionNotify: t = x_event->xmotion.time; break;
|
|
|
914 case PropertyNotify: t = x_event->xproperty.time; break;
|
|
|
915 case SelectionClear: t = x_event->xselectionclear.time; break;
|
|
|
916 case SelectionRequest: t = x_event->xselectionrequest.time; break;
|
|
|
917 case SelectionNotify: t = x_event->xselection.time; break;
|
|
|
918 default: return;
|
|
|
919 }
|
|
|
920 DEVICE_X_LAST_SERVER_TIMESTAMP (d) = t;
|
|
|
921 }
|
|
|
922
|
|
|
923 static int
|
|
|
924 x_event_to_emacs_event (XEvent *x_event, struct Lisp_Event *emacs_event)
|
|
|
925 {
|
|
|
926 Display *display = x_event->xany.display;
|
|
|
927 struct device *d = get_device_from_display (display);
|
|
|
928 struct x_device *xd = DEVICE_X_DATA (d);
|
|
|
929
|
|
|
930 if (DEVICE_X_BEING_DELETED (d))
|
|
|
931 /* #### Uh, is this 0 correct? */
|
|
|
932 return 0;
|
|
|
933
|
|
|
934 set_last_server_timestamp (d, x_event);
|
|
|
935
|
|
|
936 switch (x_event->type)
|
|
|
937 {
|
|
|
938 case KeyRelease:
|
|
|
939 x_handle_sticky_modifiers (x_event, d);
|
|
|
940 return 0;
|
|
|
941
|
|
|
942 case KeyPress:
|
|
|
943 case ButtonPress:
|
|
|
944 case ButtonRelease:
|
|
|
945 {
|
|
|
946 unsigned int modifiers = 0;
|
|
|
947 int shift_p, lock_p;
|
|
|
948 Bool key_event_p = (x_event->type == KeyPress);
|
|
|
949 unsigned int *state =
|
|
|
950 key_event_p ? &x_event->xkey.state : &x_event->xbutton.state;
|
|
|
951
|
|
|
952 /* If this is a synthetic KeyPress or Button event, and the user
|
|
|
953 has expressed a disinterest in this security hole, then drop
|
|
|
954 it on the floor. */
|
|
|
955 if ((key_event_p
|
|
|
956 ? x_event->xkey.send_event
|
|
|
957 : x_event->xbutton.send_event)
|
|
|
958 #ifdef EXTERNAL_WIDGET
|
|
|
959 /* ben: events get sent to an ExternalShell using XSendEvent.
|
|
|
960 This is not a perfect solution. */
|
|
|
961 && !FRAME_X_EXTERNAL_WINDOW_P
|
|
|
962 (x_any_window_to_frame (d, x_event->xany.window))
|
|
|
963 #endif
|
|
|
964 && !x_allow_sendevents)
|
|
|
965 return 0;
|
|
|
966
|
|
|
967 DEVICE_X_MOUSE_TIMESTAMP (d) =
|
|
|
968 DEVICE_X_GLOBAL_MOUSE_TIMESTAMP (d) =
|
|
|
969 key_event_p ? x_event->xkey.time : x_event->xbutton.time;
|
|
|
970
|
|
|
971 x_handle_sticky_modifiers (x_event, d);
|
|
|
972
|
|
|
973 if (*state & ControlMask) modifiers |= MOD_CONTROL;
|
|
|
974 if (*state & xd->MetaMask) modifiers |= MOD_META;
|
|
|
975 if (*state & xd->SuperMask) modifiers |= MOD_SUPER;
|
|
|
976 if (*state & xd->HyperMask) modifiers |= MOD_HYPER;
|
|
|
977 if (*state & xd->AltMask) modifiers |= MOD_ALT;
|
|
|
978
|
|
|
979 /* Ignore the Caps_Lock key if:
|
|
|
980 - any other modifiers are down, so that Caps_Lock doesn't
|
|
|
981 turn C-x into C-X, which would suck.
|
|
|
982 - the event was a mouse event. */
|
|
|
983 if (modifiers || ! key_event_p)
|
|
|
984 *state &= (~LockMask);
|
|
|
985
|
|
|
986 shift_p = *state & ShiftMask;
|
|
|
987 lock_p = *state & LockMask;
|
|
|
988
|
|
|
989 if (shift_p || lock_p)
|
|
|
990 modifiers |= MOD_SHIFT;
|
|
|
991
|
|
|
992 if (key_event_p)
|
|
|
993 {
|
|
|
994 Lisp_Object keysym;
|
|
|
995 XKeyEvent *ev = &x_event->xkey;
|
|
|
996 /* This used to compute the frame from the given X window and
|
|
|
997 store it here, but we really don't care about the frame. */
|
|
|
998 emacs_event->channel = DEVICE_CONSOLE (d);
|
|
|
999 keysym = x_to_emacs_keysym (&x_event->xkey, 0);
|
|
|
1000
|
|
|
1001 /* If the emacs keysym is nil, then that means that the X
|
|
|
1002 keysym was either a Modifier or NoSymbol, which
|
|
|
1003 probably means that we're in the midst of reading a
|
|
|
1004 Multi_key sequence, or a "dead" key prefix, or XIM
|
|
|
1005 input. Ignore it. */
|
|
|
1006 if (NILP (keysym))
|
|
|
1007 return 0;
|
|
|
1008
|
|
|
1009 /* More Caps_Lock garbage: Caps_Lock should *only* add the
|
|
|
1010 shift modifier to two-case keys (that is, A-Z and
|
|
|
1011 related characters). So at this point (after looking up
|
|
|
1012 the keysym) if the keysym isn't a dual-case alphabetic,
|
|
|
1013 and if the caps lock key was down but the shift key
|
|
|
1014 wasn't, then turn off the shift modifier. Gag barf */
|
|
|
1015 /* #### type lossage: assuming equivalence of emacs and
|
|
|
1016 X keysyms */
|
|
|
1017 /* !!#### maybe fix for Mule */
|
|
|
1018 if (lock_p && !shift_p &&
|
|
|
1019 ! (CHAR_OR_CHAR_INTP (keysym)
|
|
|
1020 && keysym_obeys_caps_lock_p
|
|
|
1021 ((KeySym) XCHAR_OR_CHAR_INT (keysym), d)))
|
|
|
1022 modifiers &= (~MOD_SHIFT);
|
|
|
1023
|
|
|
1024 /* If this key contains two distinct keysyms, that is,
|
|
|
1025 "shift" generates a different keysym than the
|
|
|
1026 non-shifted key, then don't apply the shift modifier
|
|
|
1027 bit: it's implicit. Otherwise, if there would be no
|
|
|
1028 other way to tell the difference between the shifted
|
|
|
1029 and unshifted version of this key, apply the shift bit.
|
|
|
1030 Non-graphics, like Backspace and F1 get the shift bit
|
|
|
1031 in the modifiers slot. Neither the characters "a",
|
|
|
1032 "A", "2", nor "@" normally have the shift bit set.
|
|
|
1033 However, "F1" normally does. */
|
|
|
1034 if (modifiers & MOD_SHIFT)
|
|
|
1035 {
|
|
|
1036 int Mode_switch_p = *state & xd->ModeMask;
|
|
|
1037 KeySym bot = XLookupKeysym (ev, Mode_switch_p ? 2 : 0);
|
|
|
1038 KeySym top = XLookupKeysym (ev, Mode_switch_p ? 3 : 1);
|
|
|
1039 if (top && bot && top != bot)
|
|
|
1040 modifiers &= ~MOD_SHIFT;
|
|
|
1041 }
|
|
|
1042 emacs_event->event_type = key_press_event;
|
|
|
1043 emacs_event->timestamp = ev->time;
|
|
|
1044 emacs_event->event.key.modifiers = modifiers;
|
|
|
1045 emacs_event->event.key.keysym = keysym;
|
|
|
1046 }
|
|
|
1047 else /* Mouse press/release event */
|
|
|
1048 {
|
|
|
1049 XButtonEvent *ev = &x_event->xbutton;
|
|
|
1050 struct frame *frame = x_window_to_frame (d, ev->window);
|
|
|
1051
|
|
|
1052 if (! frame)
|
|
|
1053 return 0; /* not for us */
|
|
|
1054 XSETFRAME (emacs_event->channel, frame);
|
|
|
1055
|
|
|
1056 emacs_event->event_type = (x_event->type == ButtonPress) ?
|
|
|
1057 button_press_event : button_release_event;
|
|
|
1058
|
|
|
1059 emacs_event->event.button.modifiers = modifiers;
|
|
|
1060 emacs_event->timestamp = ev->time;
|
|
|
1061 emacs_event->event.button.button = ev->button;
|
|
|
1062 emacs_event->event.button.x = ev->x;
|
|
|
1063 emacs_event->event.button.y = ev->y;
|
|
|
1064 /* because we don't seem to get a FocusIn event for button clicks
|
|
|
1065 when a widget-glyph is selected we will assume that we want the
|
|
|
1066 focus if a button gets pressed. */
|
|
|
1067 if (x_event->type == ButtonPress)
|
|
|
1068 handle_focus_event_1 (frame, 1);
|
|
|
1069 }
|
|
|
1070 }
|
|
|
1071 break;
|
|
|
1072
|
|
|
1073 case MotionNotify:
|
|
|
1074 {
|
|
|
1075 XMotionEvent *ev = &x_event->xmotion;
|
|
|
1076 struct frame *frame = x_window_to_frame (d, ev->window);
|
|
|
1077 unsigned int modifiers = 0;
|
|
|
1078 XMotionEvent event2;
|
|
|
1079
|
|
|
1080 if (! frame)
|
|
|
1081 return 0; /* not for us */
|
|
|
1082
|
|
|
1083 /* We use MotionHintMask, so we will get only one motion event
|
|
|
1084 until the next time we call XQueryPointer or the user
|
|
|
1085 clicks the mouse. So call XQueryPointer now (meaning that
|
|
|
1086 the event will be in sync with the server just before
|
|
|
1087 Fnext_event() returns). If the mouse is still in motion,
|
|
|
1088 then the server will immediately generate exactly one more
|
|
|
1089 motion event, which will be on the queue waiting for us
|
|
|
1090 next time around. */
|
|
|
1091 event2 = *ev;
|
|
|
1092 if (XQueryPointer (event2.display, event2.window,
|
|
|
1093 &event2.root, &event2.subwindow,
|
|
|
1094 &event2.x_root, &event2.y_root,
|
|
|
1095 &event2.x, &event2.y,
|
|
|
1096 &event2.state))
|
|
|
1097 ev = &event2; /* only one structure copy */
|
|
|
1098
|
|
|
1099 DEVICE_X_MOUSE_TIMESTAMP (d) = ev->time;
|
|
|
1100
|
|
|
1101 XSETFRAME (emacs_event->channel, frame);
|
|
|
1102 emacs_event->event_type = pointer_motion_event;
|
|
|
1103 emacs_event->timestamp = ev->time;
|
|
|
1104 emacs_event->event.motion.x = ev->x;
|
|
|
1105 emacs_event->event.motion.y = ev->y;
|
|
|
1106 if (ev->state & ShiftMask) modifiers |= MOD_SHIFT;
|
|
|
1107 if (ev->state & ControlMask) modifiers |= MOD_CONTROL;
|
|
|
1108 if (ev->state & xd->MetaMask) modifiers |= MOD_META;
|
|
|
1109 if (ev->state & xd->SuperMask) modifiers |= MOD_SUPER;
|
|
|
1110 if (ev->state & xd->HyperMask) modifiers |= MOD_HYPER;
|
|
|
1111 if (ev->state & xd->AltMask) modifiers |= MOD_ALT;
|
|
|
1112 /* Currently ignores Shift_Lock but probably shouldn't
|
|
|
1113 (but it definitely should ignore Caps_Lock). */
|
|
|
1114 emacs_event->event.motion.modifiers = modifiers;
|
|
|
1115 }
|
|
|
1116 break;
|
|
|
1117
|
|
|
1118 case ClientMessage:
|
|
|
1119 {
|
|
|
1120 /* Patch bogus TAKE_FOCUS messages from MWM; CurrentTime is
|
|
|
1121 passed as the timestamp of the TAKE_FOCUS, which the ICCCM
|
|
|
1122 explicitly prohibits. */
|
|
|
1123 XClientMessageEvent *ev = &x_event->xclient;
|
|
|
1124 #ifdef HAVE_OFFIX_DND
|
|
|
1125 if (DndIsDropMessage(x_event))
|
|
|
1126 {
|
|
|
1127 unsigned int state, modifiers = 0, button=0;
|
|
|
1128 struct frame *frame = x_any_window_to_frame (d, ev->window);
|
|
|
1129 Extbyte *data;
|
|
|
1130 unsigned long size, dtype;
|
|
|
1131 Lisp_Object l_type = Qnil, l_data = Qnil;
|
|
|
1132 Lisp_Object l_dndlist = Qnil, l_item = Qnil;
|
|
|
1133 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
|
|
|
1134
|
|
|
1135 GCPRO4 (l_type, l_data, l_dndlist, l_item);
|
|
|
1136
|
|
|
1137 if (! frame)
|
|
|
1138 return 0; /* not for us */
|
|
|
1139 XSETFRAME (emacs_event->channel, frame);
|
|
|
1140
|
|
|
1141 emacs_event->event_type = misc_user_event;
|
|
|
1142 emacs_event->timestamp = DEVICE_X_LAST_SERVER_TIMESTAMP (d);
|
|
|
1143
|
|
|
1144 state=DndDragButtons(x_event);
|
|
|
1145
|
|
|
1146 if (state & ShiftMask) modifiers |= MOD_SHIFT;
|
|
|
1147 if (state & ControlMask) modifiers |= MOD_CONTROL;
|
|
|
1148 if (state & xd->MetaMask) modifiers |= MOD_META;
|
|
|
1149 if (state & xd->SuperMask) modifiers |= MOD_SUPER;
|
|
|
1150 if (state & xd->HyperMask) modifiers |= MOD_HYPER;
|
|
|
1151 if (state & xd->AltMask) modifiers |= MOD_ALT;
|
|
|
1152
|
|
|
1153 if (state & Button5Mask) button = Button5;
|
|
|
1154 if (state & Button4Mask) button = Button4;
|
|
|
1155 if (state & Button3Mask) button = Button3;
|
|
|
1156 if (state & Button2Mask) button = Button2;
|
|
|
1157 if (state & Button1Mask) button = Button1;
|
|
|
1158
|
|
|
1159 emacs_event->event.misc.modifiers = modifiers;
|
|
|
1160 emacs_event->event.misc.button = button;
|
|
|
1161
|
|
|
1162 DndDropCoordinates(FRAME_X_TEXT_WIDGET(frame), x_event,
|
|
|
1163 &(emacs_event->event.misc.x),
|
|
|
1164 &(emacs_event->event.misc.y) );
|
|
|
1165
|
|
|
1166 DndGetData(x_event,&data,&size);
|
|
|
1167
|
|
|
1168 dtype=DndDataType(x_event);
|
|
|
1169 switch (dtype)
|
|
|
1170 {
|
|
|
1171 case DndFiles: /* null terminated strings, end null */
|
|
|
1172 {
|
|
|
1173 int len;
|
|
|
1174 char *hurl = NULL;
|
|
|
1175
|
|
|
1176 while (*data)
|
|
|
1177 {
|
|
|
1178 len = strlen ((char*)data);
|
|
|
1179 hurl = dnd_url_hexify_string ((char *)data, "file:");
|
|
|
1180 l_item = make_string ((Bufbyte *)hurl, strlen (hurl));
|
|
|
1181 l_dndlist = Fcons (l_item, l_dndlist);
|
|
|
1182 data += len + 1;
|
|
|
1183 xfree (hurl);
|
|
|
1184 }
|
|
|
1185 l_type = Qdragdrop_URL;
|
|
|
1186 }
|
|
|
1187 break;
|
|
|
1188 case DndText:
|
|
|
1189 l_type = Qdragdrop_MIME;
|
|
|
1190 l_dndlist = list1 ( list3 ( list1 ( make_string ((Bufbyte *)"text/plain", 10) ),
|
|
|
1191 make_string ((Bufbyte *)"8bit", 4),
|
|
|
1192 make_ext_string ((Extbyte *)data,
|
|
|
1193 strlen((char *)data),
|
|
|
1194 FORMAT_CTEXT) ) );
|
|
|
1195 break;
|
|
|
1196 case DndMIME:
|
|
|
1197 /* we have to parse this in some way to extract
|
|
|
1198 content-type and params (in the tm way) and
|
|
|
1199 content encoding.
|
|
|
1200 OR: if data is string, let tm do the job
|
|
|
1201 if data is list[2], give the first two
|
|
|
1202 to tm...
|
|
|
1203 */
|
|
|
1204 l_type = Qdragdrop_MIME;
|
|
|
1205 l_dndlist = list1 ( make_ext_string ((Extbyte *)data,
|
|
|
1206 strlen((char *)data),
|
|
|
1207 FORMAT_BINARY) );
|
|
|
1208 break;
|
|
|
1209 case DndFile:
|
|
|
1210 case DndDir:
|
|
|
1211 case DndLink:
|
|
|
1212 case DndExe:
|
|
|
1213 {
|
|
|
1214 char *hurl = dnd_url_hexify_string ((char *) data, "file:");
|
|
|
1215
|
|
|
1216 l_dndlist = list1 ( make_string ((Bufbyte *)hurl,
|
|
|
1217 strlen (hurl)) );
|
|
|
1218 l_type = Qdragdrop_URL;
|
|
|
1219
|
|
|
1220 xfree (hurl);
|
|
|
1221 }
|
|
|
1222 break;
|
|
|
1223 case DndURL:
|
|
|
1224 /* as it is a real URL it should already be escaped
|
|
|
1225 and escaping again will break them (cause % is unsave) */
|
|
|
1226 l_dndlist = list1 ( make_ext_string ((Extbyte *)data,
|
|
|
1227 strlen ((char *)data),
|
|
|
1228 FORMAT_FILENAME) );
|
|
|
1229 l_type = Qdragdrop_URL;
|
|
|
1230 break;
|
|
|
1231 default: /* Unknown, RawData and any other type */
|
|
|
1232 l_dndlist = list1 ( list3 ( list1 ( make_string ((Bufbyte *)"application/octet-stream", 24) ),
|
|
|
1233 make_string ((Bufbyte *)"8bit", 4),
|
|
|
1234 make_ext_string ((Extbyte *)data,
|
|
|
1235 size,
|
|
|
1236 FORMAT_BINARY) ) );
|
|
|
1237 l_type = Qdragdrop_MIME;
|
|
|
1238 break;
|
|
|
1239 }
|
|
|
1240
|
|
|
1241 emacs_event->event.misc.function = Qdragdrop_drop_dispatch;
|
|
|
1242 emacs_event->event.misc.object = Fcons (l_type, l_dndlist);
|
|
|
1243
|
|
|
1244 UNGCPRO;
|
|
|
1245
|
|
|
1246 break;
|
|
|
1247 }
|
|
|
1248 #endif /* HAVE_OFFIX_DND */
|
|
|
1249 if (ev->message_type == DEVICE_XATOM_WM_PROTOCOLS (d)
|
|
|
1250 && (Atom) (ev->data.l[0]) == DEVICE_XATOM_WM_TAKE_FOCUS (d)
|
|
|
1251 && (Atom) (ev->data.l[1]) == 0)
|
|
|
1252 {
|
|
|
1253 ev->data.l[1] = DEVICE_X_LAST_SERVER_TIMESTAMP (d);
|
|
|
1254 }
|
|
|
1255 }
|
|
|
1256 /* fall through */
|
|
|
1257
|
|
|
1258 default: /* it's a magic event */
|
|
|
1259 {
|
|
|
1260 struct frame *frame;
|
|
|
1261 Window w;
|
|
|
1262 XEvent *x_event_copy = &emacs_event->event.magic.underlying_x_event;
|
|
|
1263
|
|
|
1264 #define FROB(event_member, window_member) \
|
|
|
1265 x_event_copy->event_member = x_event->event_member; \
|
|
|
1266 w = x_event->event_member.window_member
|
|
|
1267
|
|
|
1268 switch (x_event->type)
|
|
|
1269 {
|
|
|
1270 case SelectionRequest: FROB(xselectionrequest, owner); break;
|
|
|
1271 case SelectionClear: FROB(xselectionclear, window); break;
|
|
|
1272 case SelectionNotify: FROB(xselection, requestor); break;
|
|
|
1273 case PropertyNotify: FROB(xproperty, window); break;
|
|
|
1274 case ClientMessage: FROB(xclient, window); break;
|
|
|
1275 case ConfigureNotify: FROB(xconfigure, window); break;
|
|
|
1276 case Expose:
|
|
|
1277 case GraphicsExpose: FROB(xexpose, window); break;
|
|
|
1278 case MapNotify:
|
|
|
1279 case UnmapNotify: FROB(xmap, window); break;
|
|
|
1280 case EnterNotify:
|
|
|
1281 case LeaveNotify: FROB(xcrossing, window); break;
|
|
|
1282 case FocusIn:
|
|
|
1283 case FocusOut: FROB(xfocus, window); break;
|
|
|
1284 case VisibilityNotify: FROB(xvisibility, window); break;
|
|
|
1285 default:
|
|
|
1286 w = x_event->xany.window;
|
|
|
1287 *x_event_copy = *x_event;
|
|
|
1288 break;
|
|
|
1289 }
|
|
|
1290 #undef FROB
|
|
|
1291 frame = x_any_window_to_frame (d, w);
|
|
|
1292
|
|
|
1293 if (!frame)
|
|
|
1294 return 0;
|
|
|
1295
|
|
|
1296 emacs_event->event_type = magic_event;
|
|
|
1297 XSETFRAME (emacs_event->channel, frame);
|
|
|
1298
|
|
|
1299 break;
|
|
|
1300 }
|
|
|
1301 }
|
|
|
1302 return 1;
|
|
|
1303 }
|
|
|
1304
|
|
|
1305
|
|
|
1306
|
|
|
1307 /************************************************************************/
|
|
|
1308 /* magic-event handling */
|
|
|
1309 /************************************************************************/
|
|
|
1310
|
|
|
1311 static void
|
|
|
1312 handle_focus_event_1 (struct frame *f, int in_p)
|
|
|
1313 {
|
|
|
1314 #if XtSpecificationRelease > 5
|
|
|
1315 Widget focus_widget = XtGetKeyboardFocusWidget (FRAME_X_TEXT_WIDGET (f));
|
|
|
1316 #endif
|
|
|
1317 #ifdef HAVE_XIM
|
|
|
1318 XIM_focus_event (f, in_p);
|
|
|
1319 #endif /* HAVE_XIM */
|
|
|
1320
|
|
|
1321 /* On focus change, clear all memory of sticky modifiers
|
|
|
1322 to avoid non-intuitive behavior. */
|
|
|
1323 clear_sticky_modifiers (XDEVICE (FRAME_DEVICE (f)));
|
|
|
1324
|
|
|
1325 /* We don't want to handle the focus change now, because we might
|
|
|
1326 be in an accept-process-output, sleep-for, or sit-for. So
|
|
|
1327 we enqueue it.
|
|
|
1328
|
|
|
1329 Actually, we half handle it: we handle it as far as changing the
|
|
|
1330 box cursor for redisplay, but we don't call any hooks or do any
|
|
|
1331 select-frame stuff until after the sit-for.
|
|
|
1332
|
|
|
1333 Unfortunately native widgets break the model because they grab
|
|
|
1334 the keyboard focus and nothing sets it back again. I cannot find
|
|
|
1335 any reasonable way to do this elsewhere so we assert here that
|
|
|
1336 the keyboard focus is on the emacs text widget. Menus and dialogs
|
|
|
1337 do this in their selection callback, but we don't want that since
|
|
|
1338 a button having focus is legitimate. An edit field having focus
|
|
|
1339 is mandatory. Weirdly you get a FocusOut event when you click in
|
|
|
1340 a widget-glyph but you don't get a correspondng FocusIn when you
|
|
|
1341 click in the frame. Why is this? */
|
|
|
1342 if (in_p
|
|
|
1343 #if XtSpecificationRelease > 5
|
|
|
1344 && FRAME_X_TEXT_WIDGET (f) != focus_widget
|
|
|
1345 #endif
|
|
|
1346 )
|
|
|
1347 {
|
|
|
1348 lw_set_keyboard_focus (FRAME_X_SHELL_WIDGET (f),
|
|
|
1349 FRAME_X_TEXT_WIDGET (f));
|
|
|
1350 }
|
|
|
1351 /* do the generic event-stream stuff. */
|
|
|
1352 {
|
|
|
1353 Lisp_Object frm;
|
|
|
1354 Lisp_Object conser;
|
|
|
1355 struct gcpro gcpro1;
|
|
|
1356
|
|
|
1357 XSETFRAME (frm, f);
|
|
|
1358 conser = Fcons (frm, Fcons (FRAME_DEVICE (f), in_p ? Qt : Qnil));
|
|
|
1359 GCPRO1 (conser);
|
|
|
1360 emacs_handle_focus_change_preliminary (conser);
|
|
|
1361 enqueue_magic_eval_event (emacs_handle_focus_change_final,
|
|
|
1362 conser);
|
|
|
1363 UNGCPRO;
|
|
|
1364 }
|
|
|
1365 }
|
|
|
1366
|
|
|
1367 /* This is called from the external-widget code */
|
|
|
1368
|
|
|
1369 void emacs_Xt_handle_focus_event (XEvent *event);
|
|
|
1370 void
|
|
|
1371 emacs_Xt_handle_focus_event (XEvent *event)
|
|
|
1372 {
|
|
|
1373 struct device *d = get_device_from_display (event->xany.display);
|
|
|
1374 struct frame *f;
|
|
|
1375
|
|
|
1376 if (DEVICE_X_BEING_DELETED (d))
|
|
|
1377 return;
|
|
|
1378
|
|
|
1379 /*
|
|
|
1380 * It's curious that we're using x_any_window_to_frame() instead
|
|
|
1381 * of x_window_to_frame(). I don't know what the impact of this is.
|
|
|
1382 */
|
|
|
1383 f = x_any_window_to_frame (d, event->xfocus.window);
|
|
|
1384 if (!f)
|
|
|
1385 /* focus events are sometimes generated just before
|
|
|
1386 a frame is destroyed. */
|
|
|
1387 return;
|
|
|
1388 handle_focus_event_1 (f, event->type == FocusIn);
|
|
|
1389 }
|
|
|
1390
|
|
|
1391 /* both MapNotify and VisibilityNotify can cause this
|
|
|
1392 JV is_visible has the same semantics as f->visible*/
|
|
|
1393 static void
|
|
|
1394 change_frame_visibility (struct frame *f, int is_visible)
|
|
|
1395 {
|
|
|
1396 Lisp_Object frame;
|
|
|
1397
|
|
|
1398 XSETFRAME (frame, f);
|
|
|
1399
|
|
|
1400 if (!FRAME_VISIBLE_P (f) && is_visible)
|
|
|
1401 {
|
|
|
1402 FRAME_VISIBLE_P (f) = is_visible;
|
|
|
1403 /* This improves the double flicker when uniconifying a frame
|
|
|
1404 some. A lot of it is not showing a buffer which has changed
|
|
|
1405 while the frame was iconified. To fix it further requires
|
|
|
1406 the good 'ol double redisplay structure. */
|
|
|
1407 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
1408 va_run_hook_with_args (Qmap_frame_hook, 1, frame);
|
|
|
1409 }
|
|
|
1410 else if (FRAME_VISIBLE_P (f) && !is_visible)
|
|
|
1411 {
|
|
|
1412 FRAME_VISIBLE_P (f) = 0;
|
|
|
1413 va_run_hook_with_args (Qunmap_frame_hook, 1, frame);
|
|
|
1414 }
|
|
|
1415 else if (FRAME_VISIBLE_P (f) * is_visible < 0)
|
|
|
1416 {
|
|
|
1417 FRAME_VISIBLE_P(f) = - FRAME_VISIBLE_P(f);
|
|
|
1418 if (FRAME_REPAINT_P(f))
|
|
|
1419 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
1420 va_run_hook_with_args (Qmap_frame_hook, 1, frame);
|
|
|
1421 }
|
|
|
1422 }
|
|
|
1423
|
|
|
1424 static void
|
|
|
1425 handle_map_event (struct frame *f, XEvent *event)
|
|
|
1426 {
|
|
|
1427 Lisp_Object frame;
|
|
|
1428
|
|
|
1429 XSETFRAME (frame, f);
|
|
|
1430 if (event->type == MapNotify)
|
|
|
1431 {
|
|
|
1432 XWindowAttributes xwa;
|
|
|
1433
|
|
|
1434 /* Bleagh!!!!!! Apparently some window managers (e.g. MWM)
|
|
|
1435 send synthetic MapNotify events when a window is first
|
|
|
1436 created, EVEN IF IT'S CREATED ICONIFIED OR INVISIBLE.
|
|
|
1437 Or something like that. We initially tried a different
|
|
|
1438 solution below, but that ran into a different window-
|
|
|
1439 manager bug.
|
|
|
1440
|
|
|
1441 It seems that the only reliable way is to treat a
|
|
|
1442 MapNotify event as a "hint" that the window might or
|
|
|
1443 might not be visible, and check explicitly. */
|
|
|
1444
|
|
|
1445 XGetWindowAttributes (event->xany.display, event->xmap.window,
|
|
|
1446 &xwa);
|
|
|
1447 if (xwa.map_state != IsViewable)
|
|
|
1448 {
|
|
|
1449 /* Calling Fframe_iconified_p is the only way we have to
|
|
|
1450 correctly update FRAME_ICONIFIED_P */
|
|
|
1451 Fframe_iconified_p (frame);
|
|
|
1452 return;
|
|
|
1453 }
|
|
|
1454
|
|
|
1455 FRAME_X_TOTALLY_VISIBLE_P (f) = 1;
|
|
|
1456 #if 0
|
|
|
1457 /* Bleagh again!!!! We initially tried the following hack
|
|
|
1458 around the MWM problem, but it turns out that TWM
|
|
|
1459 has a race condition when you un-iconify, where it maps
|
|
|
1460 the window and then tells the server that the window
|
|
|
1461 is un-iconified. Usually, XEmacs wakes up between
|
|
|
1462 those two occurrences, and thus thinks that un-iconified
|
|
|
1463 windows are still iconified.
|
|
|
1464
|
|
|
1465 Ah, the joys of X. */
|
|
|
1466
|
|
|
1467 /* By Emacs definition, a frame that is iconified is not
|
|
|
1468 visible. Marking a frame as visible will automatically cause
|
|
|
1469 frame-iconified-p to return nil, regardless of whether the
|
|
|
1470 frame is actually iconified. Therefore, we have to ignore
|
|
|
1471 MapNotify events on iconified frames. (It's not obvious
|
|
|
1472 to me why these are being sent, but it happens at startup
|
|
|
1473 with frames that are initially iconified; perhaps they are
|
|
|
1474 synthetic MapNotify events coming from the window manager.)
|
|
|
1475 Note that `frame-iconified-p' queries the server
|
|
|
1476 to determine whether the frame is currently iconified,
|
|
|
1477 rather than consulting some internal (and likely
|
|
|
1478 inaccurate) state flag. Therefore, ignoring the MapNotify
|
|
|
1479 is correct. */
|
|
|
1480 if (!FRAME_VISIBLE_P (f) && NILP (Fframe_iconified_p (frame)))
|
|
|
1481 #endif /* 0 */
|
|
|
1482 change_frame_visibility (f, 1);
|
|
|
1483 }
|
|
|
1484 else
|
|
|
1485 {
|
|
|
1486 FRAME_X_TOTALLY_VISIBLE_P (f) = 0;
|
|
|
1487 change_frame_visibility (f, 0);
|
|
|
1488 /* Calling Fframe_iconified_p is the only way we have to
|
|
|
1489 correctly update FRAME_ICONIFIED_P */
|
|
|
1490 Fframe_iconified_p (frame);
|
|
|
1491 }
|
|
|
1492 }
|
|
|
1493
|
|
|
1494 static void
|
|
|
1495 handle_client_message (struct frame *f, XEvent *event)
|
|
|
1496 {
|
|
|
1497 struct device *d = XDEVICE (FRAME_DEVICE (f));
|
|
|
1498 Lisp_Object frame;
|
|
|
1499
|
|
|
1500 XSETFRAME (frame, f);
|
|
|
1501
|
|
|
1502 if (event->xclient.message_type == DEVICE_XATOM_WM_PROTOCOLS (d) &&
|
|
|
1503 (Atom) (event->xclient.data.l[0]) == DEVICE_XATOM_WM_DELETE_WINDOW (d))
|
|
|
1504 {
|
|
|
1505 /* WM_DELETE_WINDOW is a misc-user event, but other ClientMessages,
|
|
|
1506 such as WM_TAKE_FOCUS, are eval events. That's because delete-window
|
|
|
1507 was probably executed with a mouse click, while the others could
|
|
|
1508 have been sent as a result of mouse motion or some other implicit
|
|
|
1509 action. (Call this a "heuristic"...) The reason for caring about
|
|
|
1510 this is so that clicking on the close-box will make emacs prompt
|
|
|
1511 using a dialog box instead of the minibuffer if there are unsaved
|
|
|
1512 buffers.
|
|
|
1513 */
|
|
|
1514 enqueue_misc_user_event (frame, Qeval,
|
|
|
1515 list3 (Qdelete_frame, frame, Qt));
|
|
|
1516 }
|
|
|
1517 else if (event->xclient.message_type == DEVICE_XATOM_WM_PROTOCOLS (d) &&
|
|
|
1518 (Atom) event->xclient.data.l[0] == DEVICE_XATOM_WM_TAKE_FOCUS (d))
|
|
|
1519 {
|
|
|
1520 handle_focus_event_1 (f, 1);
|
|
|
1521 #if 0
|
|
|
1522 /* If there is a dialog box up, focus on it.
|
|
|
1523
|
|
|
1524 #### Actually, we're raising it too, which is wrong. We should
|
|
|
1525 #### just focus on it, but lwlib doesn't currently give us an
|
|
|
1526 #### easy way to do that. This should be fixed.
|
|
|
1527 */
|
|
|
1528 unsigned long take_focus_timestamp = event->xclient.data.l[1];
|
|
|
1529 Widget widget = lw_raise_all_pop_up_widgets ();
|
|
|
1530 if (widget)
|
|
|
1531 {
|
|
|
1532 /* kludge: raise_all returns bottommost widget, but we really
|
|
|
1533 want the topmost. So just raise it for now. */
|
|
|
1534 XMapRaised (XtDisplay (widget), XtWindow (widget));
|
|
|
1535 /* Grab the focus with the timestamp of the TAKE_FOCUS. */
|
|
|
1536 XSetInputFocus (XtDisplay (widget), XtWindow (widget),
|
|
|
1537 RevertToParent, take_focus_timestamp);
|
|
|
1538 }
|
|
|
1539 #endif
|
|
|
1540 }
|
|
|
1541 }
|
|
|
1542
|
|
|
1543 static void
|
|
|
1544 emacs_Xt_handle_magic_event (struct Lisp_Event *emacs_event)
|
|
|
1545 {
|
|
|
1546 /* This function can GC */
|
|
|
1547 XEvent *event = &emacs_event->event.magic.underlying_x_event;
|
|
|
1548 struct frame *f = XFRAME (EVENT_CHANNEL (emacs_event));
|
|
|
1549
|
|
|
1550 if (!FRAME_LIVE_P (f) || DEVICE_X_BEING_DELETED (XDEVICE (FRAME_DEVICE (f))))
|
|
|
1551 return;
|
|
|
1552
|
|
|
1553 switch (event->type)
|
|
|
1554 {
|
|
|
1555 case SelectionRequest:
|
|
|
1556 x_handle_selection_request (&event->xselectionrequest);
|
|
|
1557 break;
|
|
|
1558
|
|
|
1559 case SelectionClear:
|
|
|
1560 x_handle_selection_clear (&event->xselectionclear);
|
|
|
1561 break;
|
|
|
1562
|
|
|
1563 case SelectionNotify:
|
|
|
1564 x_handle_selection_notify (&event->xselection);
|
|
|
1565 break;
|
|
|
1566
|
|
|
1567 case PropertyNotify:
|
|
|
1568 x_handle_property_notify (&event->xproperty);
|
|
|
1569 break;
|
|
|
1570
|
|
|
1571 case Expose:
|
|
|
1572 if (!check_for_ignored_expose (f, event->xexpose.x, event->xexpose.y,
|
|
|
1573 event->xexpose.width, event->xexpose.height)
|
|
|
1574 &&
|
|
|
1575 !find_matching_subwindow (f, event->xexpose.x, event->xexpose.y,
|
|
|
1576 event->xexpose.width, event->xexpose.height))
|
|
|
1577 x_redraw_exposed_area (f, event->xexpose.x, event->xexpose.y,
|
|
|
1578 event->xexpose.width, event->xexpose.height);
|
|
|
1579 break;
|
|
|
1580
|
|
|
1581 case GraphicsExpose: /* This occurs when an XCopyArea's source area was
|
|
|
1582 obscured or not available. */
|
|
|
1583 x_redraw_exposed_area (f, event->xexpose.x, event->xexpose.y,
|
|
|
1584 event->xexpose.width, event->xexpose.height);
|
|
|
1585 break;
|
|
|
1586
|
|
|
1587 case MapNotify:
|
|
|
1588 case UnmapNotify:
|
|
|
1589 handle_map_event (f, event);
|
|
|
1590 break;
|
|
|
1591
|
|
|
1592 case EnterNotify:
|
|
|
1593 if (event->xcrossing.detail != NotifyInferior)
|
|
|
1594 {
|
|
|
1595 Lisp_Object frame;
|
|
|
1596
|
|
|
1597 XSETFRAME (frame, f);
|
|
|
1598 /* FRAME_X_MOUSE_P (f) = 1; */
|
|
|
1599 va_run_hook_with_args (Qmouse_enter_frame_hook, 1, frame);
|
|
|
1600 }
|
|
|
1601 break;
|
|
|
1602
|
|
|
1603 case LeaveNotify:
|
|
|
1604 if (event->xcrossing.detail != NotifyInferior)
|
|
|
1605 {
|
|
|
1606 Lisp_Object frame;
|
|
|
1607
|
|
|
1608 XSETFRAME (frame, f);
|
|
|
1609 /* FRAME_X_MOUSE_P (f) = 0; */
|
|
|
1610 va_run_hook_with_args (Qmouse_leave_frame_hook, 1, frame);
|
|
|
1611 }
|
|
|
1612 break;
|
|
|
1613
|
|
|
1614 case FocusIn:
|
|
|
1615 case FocusOut:
|
|
|
1616
|
|
|
1617 #ifdef EXTERNAL_WIDGET
|
|
|
1618 /* External widget lossage: Ben said:
|
|
|
1619 YUCK. The only way to make focus changes work properly is to
|
|
|
1620 completely ignore all FocusIn/FocusOut events and depend only
|
|
|
1621 on notifications from the ExternalClient widget. */
|
|
|
1622 if (FRAME_X_EXTERNAL_WINDOW_P (f))
|
|
|
1623 break;
|
|
|
1624 #endif
|
|
|
1625 handle_focus_event_1 (f, event->type == FocusIn);
|
|
|
1626 break;
|
|
|
1627
|
|
|
1628 case ClientMessage:
|
|
|
1629 handle_client_message (f, event);
|
|
|
1630 break;
|
|
|
1631
|
|
|
1632 case VisibilityNotify: /* window visibility has changed */
|
|
|
1633 if (event->xvisibility.window == XtWindow (FRAME_X_SHELL_WIDGET (f)))
|
|
|
1634 {
|
|
|
1635 FRAME_X_TOTALLY_VISIBLE_P (f) =
|
|
|
1636 (event->xvisibility.state == VisibilityUnobscured);
|
|
|
1637 /* Note that the fvwm pager only sends VisibilityNotify when
|
|
|
1638 changing pages. Is this all we need to do ? JV */
|
|
|
1639 /* Nope. We must at least trigger a redisplay here.
|
|
|
1640 Since this case seems similar to MapNotify, I've
|
|
|
1641 factored out some code to change_frame_visibility().
|
|
|
1642 This triggers the necessary redisplay and runs
|
|
|
1643 (un)map-frame-hook. - dkindred@cs.cmu.edu */
|
|
|
1644 /* Changed it again to support the tristate visibility flag */
|
|
|
1645 change_frame_visibility (f, (event->xvisibility.state
|
|
|
1646 != VisibilityFullyObscured) ? 1 : -1);
|
|
|
1647 }
|
|
|
1648 break;
|
|
|
1649
|
|
|
1650 case ConfigureNotify:
|
|
|
1651 #ifdef HAVE_XIM
|
|
|
1652 XIM_SetGeometry (f);
|
|
|
1653 #endif
|
|
|
1654 break;
|
|
|
1655
|
|
|
1656 default:
|
|
|
1657 break;
|
|
|
1658 }
|
|
|
1659 }
|
|
|
1660
|
|
|
1661
|
|
|
1662 /************************************************************************/
|
|
|
1663 /* timeout events */
|
|
|
1664 /************************************************************************/
|
|
|
1665
|
|
|
1666 static int timeout_id_tick;
|
|
|
1667
|
|
|
1668 /* Xt interval id's might not fit into an int (they're pointers, as it
|
|
|
1669 happens), so we need to provide a conversion list. */
|
|
|
1670
|
|
|
1671 static struct Xt_timeout
|
|
|
1672 {
|
|
|
1673 int id;
|
|
|
1674 XtIntervalId interval_id;
|
|
|
1675 struct Xt_timeout *next;
|
|
|
1676 } *pending_timeouts, *completed_timeouts;
|
|
|
1677
|
|
|
1678 static struct Xt_timeout_blocktype
|
|
|
1679 {
|
|
|
1680 Blocktype_declare (struct Xt_timeout);
|
|
|
1681 } *the_Xt_timeout_blocktype;
|
|
|
1682
|
|
|
1683 /* called by XtAppNextEvent() */
|
|
|
1684 static void
|
|
|
1685 Xt_timeout_callback (XtPointer closure, XtIntervalId *id)
|
|
|
1686 {
|
|
|
1687 struct Xt_timeout *timeout = (struct Xt_timeout *) closure;
|
|
|
1688 struct Xt_timeout *t2 = pending_timeouts;
|
|
|
1689 /* Remove this one from the list of pending timeouts */
|
|
|
1690 if (t2 == timeout)
|
|
|
1691 pending_timeouts = pending_timeouts->next;
|
|
|
1692 else
|
|
|
1693 {
|
|
|
1694 while (t2->next && t2->next != timeout) t2 = t2->next;
|
|
|
1695 assert (t2->next);
|
|
|
1696 t2->next = t2->next->next;
|
|
|
1697 }
|
|
|
1698 /* Add this one to the list of completed timeouts */
|
|
|
1699 timeout->next = completed_timeouts;
|
|
|
1700 completed_timeouts = timeout;
|
|
|
1701 }
|
|
|
1702
|
|
|
1703 static int
|
|
|
1704 emacs_Xt_add_timeout (EMACS_TIME thyme)
|
|
|
1705 {
|
|
|
1706 struct Xt_timeout *timeout = Blocktype_alloc (the_Xt_timeout_blocktype);
|
|
|
1707 EMACS_TIME current_time;
|
|
|
1708 int milliseconds;
|
|
|
1709
|
|
|
1710 timeout->id = timeout_id_tick++;
|
|
|
1711 timeout->next = pending_timeouts;
|
|
|
1712 pending_timeouts = timeout;
|
|
|
1713 EMACS_GET_TIME (current_time);
|
|
|
1714 EMACS_SUB_TIME (thyme, thyme, current_time);
|
|
|
1715 milliseconds = EMACS_SECS (thyme) * 1000 +
|
|
|
1716 EMACS_USECS (thyme) / 1000;
|
|
|
1717 if (milliseconds < 1)
|
|
|
1718 milliseconds = 1;
|
|
|
1719 timeout->interval_id = XtAppAddTimeOut (Xt_app_con, milliseconds,
|
|
|
1720 Xt_timeout_callback,
|
|
|
1721 (XtPointer) timeout);
|
|
|
1722 return timeout->id;
|
|
|
1723 }
|
|
|
1724
|
|
|
1725 static void
|
|
|
1726 emacs_Xt_remove_timeout (int id)
|
|
|
1727 {
|
|
|
1728 struct Xt_timeout *timeout, *t2;
|
|
|
1729
|
|
|
1730 timeout = NULL;
|
|
|
1731
|
|
|
1732 /* Find the timeout on the list of pending ones, if it's still there. */
|
|
|
1733 if (pending_timeouts)
|
|
|
1734 {
|
|
|
1735 if (id == pending_timeouts->id)
|
|
|
1736 {
|
|
|
1737 timeout = pending_timeouts;
|
|
|
1738 pending_timeouts = pending_timeouts->next;
|
|
|
1739 }
|
|
|
1740 else
|
|
|
1741 {
|
|
|
1742 t2 = pending_timeouts;
|
|
|
1743 while (t2->next && t2->next->id != id) t2 = t2->next;
|
|
|
1744 if ( t2->next) /*found it */
|
|
|
1745 {
|
|
|
1746 timeout = t2->next;
|
|
|
1747 t2->next = t2->next->next;
|
|
|
1748 }
|
|
|
1749 }
|
|
|
1750 /* if it was pending, we have removed it from the list */
|
|
|
1751 if (timeout)
|
|
|
1752 XtRemoveTimeOut (timeout->interval_id);
|
|
|
1753 }
|
|
|
1754
|
|
|
1755 /* It could be that the Xt call back was already called but we didn't convert
|
|
|
1756 into an Emacs event yet */
|
|
|
1757 if (!timeout && completed_timeouts)
|
|
|
1758 {
|
|
|
1759 /* Code duplication! */
|
|
|
1760 if (id == completed_timeouts->id)
|
|
|
1761 {
|
|
|
1762 timeout = completed_timeouts;
|
|
|
1763 completed_timeouts = completed_timeouts->next;
|
|
|
1764 }
|
|
|
1765 else
|
|
|
1766 {
|
|
|
1767 t2 = completed_timeouts;
|
|
|
1768 while (t2->next && t2->next->id != id) t2 = t2->next;
|
|
|
1769 if ( t2->next) /*found it */
|
|
|
1770 {
|
|
|
1771 timeout = t2->next;
|
|
|
1772 t2->next = t2->next->next;
|
|
|
1773 }
|
|
|
1774 }
|
|
|
1775 }
|
|
|
1776
|
|
|
1777 /* If we found the thing on the lists of timeouts,
|
|
|
1778 and removed it, deallocate
|
|
|
1779 */
|
|
|
1780 if (timeout)
|
|
|
1781 Blocktype_free (the_Xt_timeout_blocktype, timeout);
|
|
|
1782 }
|
|
|
1783
|
|
|
1784 static void
|
|
|
1785 Xt_timeout_to_emacs_event (struct Lisp_Event *emacs_event)
|
|
|
1786 {
|
|
|
1787 struct Xt_timeout *timeout = completed_timeouts;
|
|
|
1788 assert (timeout);
|
|
|
1789 completed_timeouts = completed_timeouts->next;
|
|
|
1790 emacs_event->event_type = timeout_event;
|
|
|
1791 /* timeout events have nil as channel */
|
|
|
1792 emacs_event->timestamp = 0; /* #### wrong!! */
|
|
|
1793 emacs_event->event.timeout.interval_id = timeout->id;
|
|
|
1794 emacs_event->event.timeout.function = Qnil;
|
|
|
1795 emacs_event->event.timeout.object = Qnil;
|
|
|
1796 Blocktype_free (the_Xt_timeout_blocktype, timeout);
|
|
|
1797 }
|
|
|
1798
|
|
|
1799
|
|
|
1800 /************************************************************************/
|
|
|
1801 /* process and tty events */
|
|
|
1802 /************************************************************************/
|
|
|
1803
|
|
|
1804 struct what_is_ready_closure
|
|
|
1805 {
|
|
|
1806 int fd;
|
|
|
1807 Lisp_Object what;
|
|
|
1808 XtInputId id;
|
|
|
1809 };
|
|
|
1810
|
|
|
1811 static Lisp_Object *filedesc_with_input;
|
|
|
1812 static struct what_is_ready_closure **filedesc_to_what_closure;
|
|
|
1813
|
|
|
1814 static void
|
|
|
1815 init_what_input_once (void)
|
|
|
1816 {
|
|
|
1817 int i;
|
|
|
1818
|
|
|
1819 filedesc_with_input = xnew_array (Lisp_Object, MAXDESC);
|
|
|
1820 filedesc_to_what_closure =
|
|
|
1821 xnew_array (struct what_is_ready_closure *, MAXDESC);
|
|
|
1822
|
|
|
1823 for (i = 0; i < MAXDESC; i++)
|
|
|
1824 {
|
|
|
1825 filedesc_to_what_closure[i] = 0;
|
|
|
1826 filedesc_with_input[i] = Qnil;
|
|
|
1827 }
|
|
|
1828
|
|
|
1829 process_events_occurred = 0;
|
|
|
1830 tty_events_occurred = 0;
|
|
|
1831 }
|
|
|
1832
|
|
|
1833 static void
|
|
|
1834 mark_what_as_being_ready (struct what_is_ready_closure *closure)
|
|
|
1835 {
|
|
|
1836 if (NILP (filedesc_with_input[closure->fd]))
|
|
|
1837 {
|
|
|
1838 SELECT_TYPE temp_mask;
|
|
|
1839 FD_ZERO (&temp_mask);
|
|
|
1840 FD_SET (closure->fd, &temp_mask);
|
|
|
1841 /* Check to make sure there's *really* input available.
|
|
|
1842 Sometimes things seem to get confused and this gets called
|
|
|
1843 for the tty fd when there's really only input available
|
|
|
1844 on some process's fd. (It will subsequently get called
|
|
|
1845 for that process's fd, so returning without setting any
|
|
|
1846 flags will take care of it.) To see the problem, uncomment
|
|
|
1847 the stderr_out below, turn NORMAL_QUIT_CHECK_TIMEOUT_MSECS
|
|
|
1848 down to 25, do sh -c 'xemacs -nw -q -f shell 2>/tmp/log'
|
|
|
1849 and press return repeatedly. (Seen under AIX & Linux.)
|
|
|
1850 -dkindred@cs.cmu.edu */
|
|
|
1851 if (!poll_fds_for_input (temp_mask))
|
|
|
1852 {
|
|
|
1853 #if 0
|
|
|
1854 stderr_out ("mark_what_as_being_ready: no input available (fd=%d)\n",
|
|
|
1855 closure->fd);
|
|
|
1856 #endif
|
|
|
1857 return;
|
|
|
1858 }
|
|
|
1859 filedesc_with_input[closure->fd] = closure->what;
|
|
|
1860 if (PROCESSP (closure->what))
|
|
|
1861 /* Don't increment this if the current process is already marked
|
|
|
1862 * as having input. */
|
|
|
1863 process_events_occurred++;
|
|
|
1864 else
|
|
|
1865 tty_events_occurred++;
|
|
|
1866 }
|
|
|
1867 }
|
|
|
1868
|
|
|
1869 static void
|
|
|
1870 Xt_what_callback (void *closure, int *source, XtInputId *id)
|
|
|
1871 {
|
|
|
1872 /* If closure is 0, then we got a fake event from a signal handler.
|
|
|
1873 The only purpose of this is to make XtAppProcessEvent() stop
|
|
|
1874 blocking. */
|
|
|
1875 if (closure)
|
|
|
1876 mark_what_as_being_ready ((struct what_is_ready_closure *) closure);
|
|
|
1877 else
|
|
|
1878 {
|
|
|
1879 fake_event_occurred++;
|
|
|
1880 drain_signal_event_pipe ();
|
|
|
1881 }
|
|
|
1882 }
|
|
|
1883
|
|
|
1884 static void
|
|
|
1885 select_filedesc (int fd, Lisp_Object what)
|
|
|
1886 {
|
|
|
1887 struct what_is_ready_closure *closure;
|
|
|
1888
|
|
|
1889 /* If somebody is trying to select something that's already selected
|
|
|
1890 for, then something went wrong. The generic routines ought to
|
|
|
1891 detect this and error before here. */
|
|
|
1892 assert (!filedesc_to_what_closure[fd]);
|
|
|
1893
|
|
|
1894 closure = xnew (struct what_is_ready_closure);
|
|
|
1895 closure->fd = fd;
|
|
|
1896 closure->what = what;
|
|
|
1897 closure->id =
|
|
|
1898 XtAppAddInput (Xt_app_con, fd,
|
|
|
1899 (XtPointer) (XtInputReadMask /* | XtInputExceptMask */),
|
|
|
1900 Xt_what_callback, closure);
|
|
|
1901 filedesc_to_what_closure[fd] = closure;
|
|
|
1902 }
|
|
|
1903
|
|
|
1904 static void
|
|
|
1905 unselect_filedesc (int fd)
|
|
|
1906 {
|
|
|
1907 struct what_is_ready_closure *closure = filedesc_to_what_closure[fd];
|
|
|
1908
|
|
|
1909 assert (closure);
|
|
|
1910 if (!NILP (filedesc_with_input[fd]))
|
|
|
1911 {
|
|
|
1912 /* We are unselecting this process before we have drained the rest of
|
|
|
1913 the input from it, probably from status_notify() in the command loop.
|
|
|
1914 This can happen like so:
|
|
|
1915
|
|
|
1916 - We are waiting in XtAppNextEvent()
|
|
|
1917 - Process generates output
|
|
|
1918 - Process is marked as being ready
|
|
|
1919 - Process dies, SIGCHLD gets generated before we return (!?)
|
|
|
1920 It could happen I guess.
|
|
|
1921 - sigchld_handler() marks process as dead
|
|
|
1922 - Somehow we end up getting a new KeyPress event on the queue
|
|
|
1923 at the same time (I'm really so sure how that happens but I'm
|
|
|
1924 not sure it can't either so let's assume it can...).
|
|
|
1925 - Key events have priority so we return that instead of the proc.
|
|
|
1926 - Before dispatching the lisp key event we call status_notify()
|
|
|
1927 - Which deselects the process that SIGCHLD marked as dead.
|
|
|
1928
|
|
|
1929 Thus we never remove it from _with_input and turn it into a lisp
|
|
|
1930 event, so we need to do it here. But this does not mean that we're
|
|
|
1931 throwing away the last block of output - status_notify() has already
|
|
|
1932 taken care of running the proc filter or whatever.
|
|
|
1933 */
|
|
|
1934 filedesc_with_input[fd] = Qnil;
|
|
|
1935 if (PROCESSP (closure->what))
|
|
|
1936 {
|
|
|
1937 assert (process_events_occurred > 0);
|
|
|
1938 process_events_occurred--;
|
|
|
1939 }
|
|
|
1940 else
|
|
|
1941 {
|
|
|
1942 assert (tty_events_occurred > 0);
|
|
|
1943 tty_events_occurred--;
|
|
|
1944 }
|
|
|
1945 }
|
|
|
1946 XtRemoveInput (closure->id);
|
|
|
1947 xfree (closure);
|
|
|
1948 filedesc_to_what_closure[fd] = 0;
|
|
|
1949 }
|
|
|
1950
|
|
|
1951 static void
|
|
|
1952 emacs_Xt_select_process (struct Lisp_Process *p)
|
|
|
1953 {
|
|
|
1954 Lisp_Object process;
|
|
|
1955 int infd = event_stream_unixoid_select_process (p);
|
|
|
1956
|
|
|
1957 XSETPROCESS (process, p);
|
|
|
1958 select_filedesc (infd, process);
|
|
|
1959 }
|
|
|
1960
|
|
|
1961 static void
|
|
|
1962 emacs_Xt_unselect_process (struct Lisp_Process *p)
|
|
|
1963 {
|
|
|
1964 int infd = event_stream_unixoid_unselect_process (p);
|
|
|
1965
|
|
|
1966 unselect_filedesc (infd);
|
|
|
1967 }
|
|
|
1968
|
|
|
1969 static USID
|
|
|
1970 emacs_Xt_create_stream_pair (void* inhandle, void* outhandle,
|
|
|
1971 Lisp_Object* instream, Lisp_Object* outstream, int flags)
|
|
|
1972 {
|
|
|
1973 USID u = event_stream_unixoid_create_stream_pair
|
|
|
1974 (inhandle, outhandle, instream, outstream, flags);
|
|
|
1975 if (u != USID_ERROR)
|
|
|
1976 u = USID_DONTHASH;
|
|
|
1977 return u;
|
|
|
1978 }
|
|
|
1979
|
|
|
1980 static USID
|
|
|
1981 emacs_Xt_delete_stream_pair (Lisp_Object instream, Lisp_Object outstream)
|
|
|
1982 {
|
|
|
1983 event_stream_unixoid_delete_stream_pair (instream, outstream);
|
|
|
1984 return USID_DONTHASH;
|
|
|
1985 }
|
|
|
1986
|
|
|
1987 /* This is called from GC when a process object is about to be freed.
|
|
|
1988 If we've still got pointers to it in this file, we're gonna lose hard.
|
|
|
1989 */
|
|
|
1990 void
|
|
|
1991 debug_process_finalization (struct Lisp_Process *p)
|
|
|
1992 {
|
|
|
1993 #if 0 /* #### */
|
|
|
1994 int i;
|
|
|
1995 Lisp_Object instr, outstr;
|
|
|
1996
|
|
|
1997 get_process_streams (p, &instr, &outstr);
|
|
|
1998 /* if it still has fds, then it hasn't been killed yet. */
|
|
|
1999 assert (NILP(instr));
|
|
|
2000 assert (NILP(outstr));
|
|
|
2001 /* Better not still be in the "with input" table; we know it's got no fds. */
|
|
|
2002 for (i = 0; i < MAXDESC; i++)
|
|
|
2003 {
|
|
|
2004 Lisp_Object process = filedesc_fds_with_input [i];
|
|
|
2005 assert (!PROCESSP (process) || XPROCESS (process) != p);
|
|
|
2006 }
|
|
|
2007 #endif
|
|
|
2008 }
|
|
|
2009
|
|
|
2010 static void
|
|
|
2011 Xt_process_to_emacs_event (struct Lisp_Event *emacs_event)
|
|
|
2012 {
|
|
|
2013 int i;
|
|
|
2014 Lisp_Object process;
|
|
|
2015
|
|
|
2016 assert (process_events_occurred > 0);
|
|
|
2017 for (i = 0; i < MAXDESC; i++)
|
|
|
2018 {
|
|
|
2019 process = filedesc_with_input[i];
|
|
|
2020 if (PROCESSP (process))
|
|
|
2021 break;
|
|
|
2022 }
|
|
|
2023 assert (i < MAXDESC);
|
|
|
2024 filedesc_with_input[i] = Qnil;
|
|
|
2025 process_events_occurred--;
|
|
|
2026 /* process events have nil as channel */
|
|
|
2027 emacs_event->event_type = process_event;
|
|
|
2028 emacs_event->timestamp = 0; /* #### */
|
|
|
2029 emacs_event->event.process.process = process;
|
|
|
2030 }
|
|
|
2031
|
|
|
2032 static void
|
|
|
2033 emacs_Xt_select_console (struct console *con)
|
|
|
2034 {
|
|
|
2035 Lisp_Object console;
|
|
|
2036 int infd;
|
|
|
2037
|
|
|
2038 if (CONSOLE_X_P (con))
|
|
|
2039 return; /* X consoles are automatically selected for when we
|
|
|
2040 initialize them in Xt */
|
|
|
2041 infd = event_stream_unixoid_select_console (con);
|
|
|
2042 XSETCONSOLE (console, con);
|
|
|
2043 select_filedesc (infd, console);
|
|
|
2044 }
|
|
|
2045
|
|
|
2046 static void
|
|
|
2047 emacs_Xt_unselect_console (struct console *con)
|
|
|
2048 {
|
|
|
2049 Lisp_Object console;
|
|
|
2050 int infd;
|
|
|
2051
|
|
|
2052 if (CONSOLE_X_P (con))
|
|
|
2053 return; /* X consoles are automatically selected for when we
|
|
|
2054 initialize them in Xt */
|
|
|
2055 infd = event_stream_unixoid_unselect_console (con);
|
|
|
2056 XSETCONSOLE (console, con);
|
|
|
2057 unselect_filedesc (infd);
|
|
|
2058 }
|
|
|
2059
|
|
|
2060 /* read an event from a tty, if one is available. Returns non-zero
|
|
|
2061 if an event was available. Note that when this function is
|
|
|
2062 called, there should always be a tty marked as ready for input.
|
|
|
2063 However, the input condition might actually be EOF, so there
|
|
|
2064 may not really be any input available. (In this case,
|
|
|
2065 read_event_from_tty_or_stream_desc() will arrange for the TTY device
|
|
|
2066 to be deleted.) */
|
|
|
2067
|
|
|
2068 static int
|
|
|
2069 Xt_tty_to_emacs_event (struct Lisp_Event *emacs_event)
|
|
|
2070 {
|
|
|
2071 int i;
|
|
|
2072
|
|
|
2073 assert (tty_events_occurred > 0);
|
|
|
2074 for (i = 0; i < MAXDESC; i++)
|
|
|
2075 {
|
|
|
2076 Lisp_Object console = filedesc_with_input[i];
|
|
|
2077 if (CONSOLEP (console))
|
|
|
2078 {
|
|
|
2079 assert (tty_events_occurred > 0);
|
|
|
2080 tty_events_occurred--;
|
|
|
2081 filedesc_with_input[i] = Qnil;
|
|
|
2082 if (read_event_from_tty_or_stream_desc
|
|
|
2083 (emacs_event, XCONSOLE (console), i))
|
|
|
2084 return 1;
|
|
|
2085 }
|
|
|
2086 }
|
|
|
2087
|
|
|
2088 return 0;
|
|
|
2089 }
|
|
|
2090
|
|
|
2091
|
|
|
2092 /************************************************************************/
|
|
|
2093 /* debugging functions to decipher an event */
|
|
|
2094 /************************************************************************/
|
|
|
2095
|
|
|
2096 #ifdef DEBUG_XEMACS
|
|
|
2097 #include "xintrinsicp.h" /* only describe_event() needs this */
|
|
|
2098 #include <X11/Xproto.h> /* only describe_event() needs this */
|
|
|
2099
|
|
|
2100 static void
|
|
|
2101 describe_event_window (Window window, Display *display)
|
|
|
2102 {
|
|
|
2103 struct frame *f;
|
|
|
2104 Widget w;
|
|
|
2105 stderr_out (" window: 0x%lx", (unsigned long) window);
|
|
|
2106 w = XtWindowToWidget (display, window);
|
|
|
2107 if (w)
|
|
|
2108 stderr_out (" %s", w->core.widget_class->core_class.class_name);
|
|
|
2109 f = x_any_window_to_frame (get_device_from_display (display), window);
|
|
|
2110 if (f)
|
|
|
2111 {
|
|
|
2112 char *buf = alloca_array (char, XSTRING_LENGTH (f->name) + 4);
|
|
|
2113 sprintf (buf, " \"%s\"", XSTRING_DATA (f->name));
|
|
|
2114 write_string_to_stdio_stream (stderr, 0, (Bufbyte *) buf, 0,
|
|
|
2115 strlen (buf), FORMAT_TERMINAL);
|
|
|
2116 }
|
|
|
2117 stderr_out ("\n");
|
|
|
2118 }
|
|
|
2119
|
|
|
2120 static CONST char *
|
|
|
2121 XEvent_mode_to_string (int mode)
|
|
|
2122 {
|
|
|
2123 switch (mode)
|
|
|
2124 {
|
|
|
2125 case NotifyNormal: return "Normal";
|
|
|
2126 case NotifyGrab: return "Grab";
|
|
|
2127 case NotifyUngrab: return "Ungrab";
|
|
|
2128 case NotifyWhileGrabbed: return "WhileGrabbed";
|
|
|
2129 default: return "???";
|
|
|
2130 }
|
|
|
2131 }
|
|
|
2132
|
|
|
2133 static CONST char *
|
|
|
2134 XEvent_detail_to_string (int detail)
|
|
|
2135 {
|
|
|
2136 switch (detail)
|
|
|
2137 {
|
|
|
2138 case NotifyAncestor: return "Ancestor";
|
|
|
2139 case NotifyInferior: return "Inferior";
|
|
|
2140 case NotifyNonlinear: return "Nonlinear";
|
|
|
2141 case NotifyNonlinearVirtual: return "NonlinearVirtual";
|
|
|
2142 case NotifyPointer: return "Pointer";
|
|
|
2143 case NotifyPointerRoot: return "PointerRoot";
|
|
|
2144 case NotifyDetailNone: return "DetailNone";
|
|
|
2145 default: return "???";
|
|
|
2146 }
|
|
|
2147 }
|
|
|
2148
|
|
|
2149 static CONST char *
|
|
|
2150 XEvent_visibility_to_string (int state)
|
|
|
2151 {
|
|
|
2152 switch (state)
|
|
|
2153 {
|
|
|
2154 case VisibilityFullyObscured: return "FullyObscured";
|
|
|
2155 case VisibilityPartiallyObscured: return "PartiallyObscured";
|
|
|
2156 case VisibilityUnobscured: return "Unobscured";
|
|
|
2157 default: return "???";
|
|
|
2158 }
|
|
|
2159 }
|
|
|
2160
|
|
|
2161 static void
|
|
|
2162 describe_event (XEvent *event)
|
|
|
2163 {
|
|
|
2164 char buf[100];
|
|
|
2165 struct device *d = get_device_from_display (event->xany.display);
|
|
|
2166
|
|
|
2167 sprintf (buf, "%s%s", x_event_name (event->type),
|
|
|
2168 event->xany.send_event ? " (send)" : "");
|
|
|
2169 stderr_out ("%-30s", buf);
|
|
|
2170 switch (event->type)
|
|
|
2171 {
|
|
|
2172 case FocusIn:
|
|
|
2173 case FocusOut:
|
|
|
2174 {
|
|
|
2175 XFocusChangeEvent *ev = &event->xfocus;
|
|
|
2176 describe_event_window (ev->window, ev->display);
|
|
|
2177 stderr_out (" mode: %s\n", XEvent_mode_to_string (ev->mode));
|
|
|
2178 stderr_out (" detail: %s\n", XEvent_detail_to_string(ev->detail));
|
|
|
2179 break;
|
|
|
2180 }
|
|
|
2181
|
|
|
2182 case KeyPress:
|
|
|
2183 {
|
|
|
2184 XKeyEvent *ev = &event->xkey;
|
|
|
2185 unsigned int state = ev->state;
|
|
|
2186
|
|
|
2187 describe_event_window (ev->window, ev->display);
|
|
|
2188 stderr_out (" subwindow: %ld\n", ev->subwindow);
|
|
|
2189 stderr_out (" state: ");
|
|
|
2190 /* Complete list of modifier key masks */
|
|
|
2191 if (state & ShiftMask) stderr_out ("Shift ");
|
|
|
2192 if (state & LockMask) stderr_out ("Lock ");
|
|
|
2193 if (state & ControlMask) stderr_out ("Control ");
|
|
|
2194 if (state & Mod1Mask) stderr_out ("Mod1 ");
|
|
|
2195 if (state & Mod2Mask) stderr_out ("Mod2 ");
|
|
|
2196 if (state & Mod3Mask) stderr_out ("Mod3 ");
|
|
|
2197 if (state & Mod4Mask) stderr_out ("Mod4 ");
|
|
|
2198 if (state & Mod5Mask) stderr_out ("Mod5 ");
|
|
|
2199
|
|
|
2200 if (! state)
|
|
|
2201 stderr_out ("vanilla\n");
|
|
|
2202 else
|
|
|
2203 stderr_out ("\n");
|
|
|
2204 if (x_key_is_modifier_p (ev->keycode, d))
|
|
|
2205 stderr_out (" Modifier key");
|
|
|
2206 stderr_out (" keycode: 0x%x\n", ev->keycode);
|
|
|
2207 }
|
|
|
2208 break;
|
|
|
2209
|
|
|
2210 case Expose:
|
|
|
2211 if (x_debug_events > 1)
|
|
|
2212 {
|
|
|
2213 XExposeEvent *ev = &event->xexpose;
|
|
|
2214 describe_event_window (ev->window, ev->display);
|
|
|
2215 stderr_out (" region: x=%d y=%d width=%d height=%d\n",
|
|
|
2216 ev->x, ev->y, ev->width, ev->height);
|
|
|
2217 stderr_out (" count: %d\n", ev->count);
|
|
|
2218 }
|
|
|
2219 else
|
|
|
2220 stderr_out ("\n");
|
|
|
2221 break;
|
|
|
2222
|
|
|
2223 case GraphicsExpose:
|
|
|
2224 if (x_debug_events > 1)
|
|
|
2225 {
|
|
|
2226 XGraphicsExposeEvent *ev = &event->xgraphicsexpose;
|
|
|
2227 describe_event_window (ev->drawable, ev->display);
|
|
|
2228 stderr_out (" major: %s\n",
|
|
|
2229 (ev ->major_code == X_CopyArea ? "CopyArea" :
|
|
|
2230 (ev->major_code == X_CopyPlane ? "CopyPlane" : "?")));
|
|
|
2231 stderr_out (" region: x=%d y=%d width=%d height=%d\n",
|
|
|
2232 ev->x, ev->y, ev->width, ev->height);
|
|
|
2233 stderr_out (" count: %d\n", ev->count);
|
|
|
2234 }
|
|
|
2235 else
|
|
|
2236 stderr_out ("\n");
|
|
|
2237 break;
|
|
|
2238
|
|
|
2239 case EnterNotify:
|
|
|
2240 case LeaveNotify:
|
|
|
2241 if (x_debug_events > 1)
|
|
|
2242 {
|
|
|
2243 XCrossingEvent *ev = &event->xcrossing;
|
|
|
2244 describe_event_window (ev->window, ev->display);
|
|
|
2245 #if 0
|
|
|
2246 stderr_out(" subwindow: 0x%x\n", ev->subwindow);
|
|
|
2247 stderr_out(" pos: %d %d\n", ev->x, ev->y);
|
|
|
2248 stderr_out(" root pos: %d %d\n", ev->x_root, ev->y_root);
|
|
|
2249 #endif
|
|
|
2250 stderr_out(" mode: %s\n", XEvent_mode_to_string(ev->mode));
|
|
|
2251 stderr_out(" detail: %s\n", XEvent_detail_to_string(ev->detail));
|
|
|
2252 stderr_out(" focus: %d\n", ev->focus);
|
|
|
2253 #if 0
|
|
|
2254 stderr_out(" state: 0x%x\n", ev->state);
|
|
|
2255 #endif
|
|
|
2256 }
|
|
|
2257 else
|
|
|
2258 stderr_out("\n");
|
|
|
2259 break;
|
|
|
2260
|
|
|
2261 case ConfigureNotify:
|
|
|
2262 if (x_debug_events > 1)
|
|
|
2263 {
|
|
|
2264 XConfigureEvent *ev = &event->xconfigure;
|
|
|
2265 describe_event_window (ev->window, ev->display);
|
|
|
2266 stderr_out(" above: 0x%lx\n", ev->above);
|
|
|
2267 stderr_out(" size: %d %d %d %d\n", ev->x, ev->y,
|
|
|
2268 ev->width, ev->height);
|
|
|
2269 stderr_out(" redirect: %d\n", ev->override_redirect);
|
|
|
2270 }
|
|
|
2271 else
|
|
|
2272 stderr_out("\n");
|
|
|
2273 break;
|
|
|
2274
|
|
|
2275 case VisibilityNotify:
|
|
|
2276 if (x_debug_events > 1)
|
|
|
2277 {
|
|
|
2278 XVisibilityEvent *ev = &event->xvisibility;
|
|
|
2279 describe_event_window (ev->window, ev->display);
|
|
|
2280 stderr_out(" state: %s\n", XEvent_visibility_to_string(ev->state));
|
|
|
2281 }
|
|
|
2282 else
|
|
|
2283 stderr_out ("\n");
|
|
|
2284 break;
|
|
|
2285
|
|
|
2286 case ClientMessage:
|
|
|
2287 {
|
|
|
2288 XClientMessageEvent *ev = &event->xclient;
|
|
|
2289 char *name = XGetAtomName (ev->display, ev->message_type);
|
|
|
2290 stderr_out ("%s", name);
|
|
|
2291 if (!strcmp (name, "WM_PROTOCOLS")) {
|
|
|
2292 char *protname = XGetAtomName (ev->display, ev->data.l[0]);
|
|
|
2293 stderr_out ("(%s)", protname);
|
|
|
2294 XFree (protname);
|
|
|
2295 }
|
|
|
2296 XFree (name);
|
|
|
2297 stderr_out ("\n");
|
|
|
2298 break;
|
|
|
2299 }
|
|
|
2300
|
|
|
2301 default:
|
|
|
2302 stderr_out ("\n");
|
|
|
2303 break;
|
|
|
2304 }
|
|
|
2305
|
|
|
2306 fflush (stdout);
|
|
|
2307 }
|
|
|
2308
|
|
|
2309 #endif /* include describe_event definition */
|
|
|
2310
|
|
|
2311
|
|
|
2312 /************************************************************************/
|
|
|
2313 /* get the next event from Xt */
|
|
|
2314 /************************************************************************/
|
|
|
2315
|
|
|
2316 static Lisp_Object dispatch_event_queue, dispatch_event_queue_tail;
|
|
|
2317
|
|
|
2318 static void
|
|
|
2319 enqueue_Xt_dispatch_event (Lisp_Object event)
|
|
|
2320 {
|
|
|
2321 enqueue_event (event, &dispatch_event_queue, &dispatch_event_queue_tail);
|
|
|
2322 }
|
|
|
2323
|
|
|
2324 static Lisp_Object
|
|
|
2325 dequeue_Xt_dispatch_event (void)
|
|
|
2326 {
|
|
|
2327 return dequeue_event (&dispatch_event_queue, &dispatch_event_queue_tail);
|
|
|
2328 }
|
|
|
2329
|
|
|
2330 /* This business exists because menu events "happen" when
|
|
|
2331 menubar_selection_callback() is called from somewhere deep
|
|
|
2332 within XtAppProcessEvent in emacs_Xt_next_event(). The
|
|
|
2333 callback needs to terminate the modal loop in that function
|
|
|
2334 or else it will continue waiting until another event is
|
|
|
2335 received.
|
|
|
2336
|
|
|
2337 Same business applies to scrollbar events. */
|
|
|
2338
|
|
|
2339 void
|
|
|
2340 signal_special_Xt_user_event (Lisp_Object channel, Lisp_Object function,
|
|
|
2341 Lisp_Object object)
|
|
|
2342 {
|
|
|
2343 Lisp_Object event = Fmake_event (Qnil, Qnil);
|
|
|
2344
|
|
|
2345 XEVENT (event)->event_type = misc_user_event;
|
|
|
2346 XEVENT (event)->channel = channel;
|
|
|
2347 XEVENT (event)->event.eval.function = function;
|
|
|
2348 XEVENT (event)->event.eval.object = object;
|
|
|
2349
|
|
|
2350 enqueue_Xt_dispatch_event (event);
|
|
|
2351 }
|
|
|
2352
|
|
|
2353 static void
|
|
|
2354 emacs_Xt_next_event (struct Lisp_Event *emacs_event)
|
|
|
2355 {
|
|
|
2356 we_didnt_get_an_event:
|
|
|
2357
|
|
|
2358 while (NILP (dispatch_event_queue) &&
|
|
|
2359 !completed_timeouts &&
|
|
|
2360 !fake_event_occurred &&
|
|
|
2361 !process_events_occurred &&
|
|
|
2362 !tty_events_occurred)
|
|
|
2363 {
|
|
|
2364
|
|
|
2365 /* Stupid logic in XtAppProcessEvent() dictates that, if process
|
|
|
2366 events and X events are both available, the process event gets
|
|
|
2367 taken first. This will cause an infinite loop if we're being
|
|
|
2368 called from Fdiscard_input().
|
|
|
2369 */
|
|
|
2370 if (XtAppPending (Xt_app_con) & XtIMXEvent)
|
|
|
2371 XtAppProcessEvent (Xt_app_con, XtIMXEvent);
|
|
|
2372 else
|
|
|
2373 {
|
|
|
2374 Lisp_Object devcons, concons;
|
|
|
2375
|
|
|
2376 /* We're about to block. Xt has a bug in it (big surprise,
|
|
|
2377 there) in that it blocks using select() and doesn't
|
|
|
2378 flush the Xlib output buffers (XNextEvent() does this
|
|
|
2379 automatically before blocking). So it's necessary
|
|
|
2380 for us to do this ourselves. If we don't do it, then
|
|
|
2381 display output may not be seen until the next time
|
|
|
2382 an X event is received. (This happens esp. with
|
|
|
2383 subprocess output that gets sent to a visible buffer.)
|
|
|
2384
|
|
|
2385 #### The above comment may not have any validity. */
|
|
|
2386
|
|
|
2387 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
2388 {
|
|
|
2389 struct device *d;
|
|
|
2390 d = XDEVICE (XCAR (devcons));
|
|
|
2391
|
|
|
2392 if (DEVICE_X_P (d) && DEVICE_X_DISPLAY (d))
|
|
|
2393 /* emacs may be exiting */
|
|
|
2394 XFlush (DEVICE_X_DISPLAY (d));
|
|
|
2395 }
|
|
|
2396 XtAppProcessEvent (Xt_app_con, XtIMAll);
|
|
|
2397 }
|
|
|
2398 }
|
|
|
2399
|
|
|
2400 if (!NILP (dispatch_event_queue))
|
|
|
2401 {
|
|
|
2402 Lisp_Object event, event2;
|
|
|
2403 XSETEVENT (event2, emacs_event);
|
|
|
2404 event = dequeue_Xt_dispatch_event ();
|
|
|
2405 Fcopy_event (event, event2);
|
|
|
2406 Fdeallocate_event (event);
|
|
|
2407 }
|
|
|
2408 else if (tty_events_occurred)
|
|
|
2409 {
|
|
|
2410 if (!Xt_tty_to_emacs_event (emacs_event))
|
|
|
2411 goto we_didnt_get_an_event;
|
|
|
2412 }
|
|
|
2413 else if (completed_timeouts)
|
|
|
2414 Xt_timeout_to_emacs_event (emacs_event);
|
|
|
2415 else if (fake_event_occurred)
|
|
|
2416 {
|
|
|
2417 /* A dummy event, so that a cycle of the command loop will occur. */
|
|
|
2418 fake_event_occurred = 0;
|
|
|
2419 /* eval events have nil as channel */
|
|
|
2420 emacs_event->event_type = eval_event;
|
|
|
2421 emacs_event->event.eval.function = Qidentity;
|
|
|
2422 emacs_event->event.eval.object = Qnil;
|
|
|
2423 }
|
|
|
2424 else /* if (process_events_occurred) */
|
|
|
2425 Xt_process_to_emacs_event (emacs_event);
|
|
|
2426
|
|
|
2427 /* No need to call XFilterEvent; Xt does it for us */
|
|
|
2428 }
|
|
|
2429
|
|
|
2430 void
|
|
|
2431 emacs_Xt_event_handler (Widget wid /* unused */,
|
|
|
2432 XtPointer closure /* unused */,
|
|
|
2433 XEvent *event,
|
|
|
2434 Boolean *continue_to_dispatch /* unused */)
|
|
|
2435 {
|
|
|
2436 Lisp_Object emacs_event = Fmake_event (Qnil, Qnil);
|
|
|
2437
|
|
|
2438 #ifdef DEBUG_XEMACS
|
|
|
2439 if (x_debug_events > 0)
|
|
|
2440 {
|
|
|
2441 describe_event (event);
|
|
|
2442 }
|
|
|
2443 #endif /* DEBUG_XEMACS */
|
|
|
2444 if (x_event_to_emacs_event (event, XEVENT (emacs_event)))
|
|
|
2445 enqueue_Xt_dispatch_event (emacs_event);
|
|
|
2446 else
|
|
|
2447 Fdeallocate_event (emacs_event);
|
|
|
2448 }
|
|
|
2449
|
|
|
2450
|
|
|
2451 /************************************************************************/
|
|
|
2452 /* input pending / C-g checking */
|
|
|
2453 /************************************************************************/
|
|
|
2454
|
|
|
2455 static Bool
|
|
|
2456 quit_char_predicate (Display *display, XEvent *event, XPointer data)
|
|
|
2457 {
|
|
|
2458 struct device *d = get_device_from_display (display);
|
|
|
2459 struct x_device *xd = DEVICE_X_DATA (d);
|
|
|
2460 char c, quit_char;
|
|
|
2461 Bool *critical = (Bool *) data;
|
|
|
2462 Lisp_Object keysym;
|
|
|
2463
|
|
|
2464 if (critical)
|
|
|
2465 *critical = False;
|
|
|
2466 if ((event->type != KeyPress) ||
|
|
|
2467 (! x_any_window_to_frame (d, event->xany.window)) ||
|
|
|
2468 (event->xkey.state
|
|
|
2469 & (xd->MetaMask | xd->HyperMask | xd->SuperMask | xd->AltMask)))
|
|
|
2470 return 0;
|
|
|
2471
|
|
|
2472 /* This duplicates some code that exists elsewhere, but it's relatively
|
|
|
2473 fast and doesn't cons. */
|
|
|
2474 keysym = x_to_emacs_keysym (&event->xkey, 1);
|
|
|
2475 if (NILP (keysym)) return 0;
|
|
|
2476 if (CHAR_OR_CHAR_INTP (keysym))
|
|
|
2477 c = XCHAR_OR_CHAR_INT (keysym);
|
|
|
2478 /* Highly doubtful that these are the quit character, but... */
|
|
|
2479 else if (EQ (keysym, QKbackspace)) c = '\b';
|
|
|
2480 else if (EQ (keysym, QKtab)) c = '\t';
|
|
|
2481 else if (EQ (keysym, QKlinefeed)) c = '\n';
|
|
|
2482 else if (EQ (keysym, QKreturn)) c = '\r';
|
|
|
2483 else if (EQ (keysym, QKescape)) c = 27;
|
|
|
2484 else if (EQ (keysym, QKspace)) c = ' ';
|
|
|
2485 else if (EQ (keysym, QKdelete)) c = 127;
|
|
|
2486 else return 0;
|
|
|
2487
|
|
|
2488 if (event->xkey.state & xd->MetaMask) c |= 0x80;
|
|
|
2489 if ((event->xkey.state & ControlMask) && !(c >= 'A' && c <= 'Z'))
|
|
|
2490 c &= 0x1F; /* unshifted control characters */
|
|
|
2491 quit_char = CONSOLE_QUIT_CHAR (XCONSOLE (DEVICE_CONSOLE (d)));
|
|
|
2492 if (c == quit_char)
|
|
|
2493 return True;
|
|
|
2494 /* If we've got Control-Shift-G instead of Control-G, that means
|
|
|
2495 we have a critical_quit. Caps_Lock is its own modifier, so it
|
|
|
2496 won't cause ^G to act differently than before. */
|
|
|
2497 if (event->xkey.state & ControlMask) c &= 0x1F;
|
|
|
2498 if (c == quit_char)
|
|
|
2499 {
|
|
|
2500 if (critical) *critical = True;
|
|
|
2501 return True;
|
|
|
2502 }
|
|
|
2503 return False;
|
|
|
2504 }
|
|
|
2505
|
|
|
2506 /* This scans the X input queue for a KeyPress event that matches the
|
|
|
2507 quit character, and sets Vquit_flag. This is called from the
|
|
|
2508 QUIT macro to determine whether we should quit.
|
|
|
2509
|
|
|
2510 In a SIGIO world, this won't be called unless a SIGIO has happened
|
|
|
2511 since the last time we checked.
|
|
|
2512
|
|
|
2513 In a non-SIGIO world, this is called from emacs_Xt_event_pending_p
|
|
|
2514 (which is called from input_pending_p).
|
|
|
2515 */
|
|
|
2516 static void
|
|
|
2517 x_check_for_quit_char (Display *display)
|
|
|
2518 {
|
|
|
2519 XEvent event;
|
|
|
2520 int queued;
|
|
|
2521 Bool critical_quit = False;
|
|
|
2522 XEventsQueued (display, QueuedAfterReading);
|
|
|
2523 queued = XCheckIfEvent (display, &event,
|
|
|
2524 quit_char_predicate,
|
|
|
2525 (char *) &critical_quit);
|
|
|
2526 if (queued)
|
|
|
2527 {
|
|
|
2528 Vquit_flag = (critical_quit ? Qcritical : Qt);
|
|
|
2529 /* don't put the event back onto the queue. Those functions that
|
|
|
2530 wanted to read a ^G directly have arranged to do this. */
|
|
|
2531 }
|
|
|
2532 }
|
|
|
2533
|
|
|
2534 static void
|
|
|
2535 check_for_tty_quit_char (struct device *d)
|
|
|
2536 {
|
|
|
2537 SELECT_TYPE temp_mask;
|
|
|
2538 int infd = DEVICE_INFD (d);
|
|
|
2539 struct console *con = XCONSOLE (DEVICE_CONSOLE (d));
|
|
|
2540 Emchar quit_char = CONSOLE_QUIT_CHAR (con);
|
|
|
2541
|
|
|
2542 FD_ZERO (&temp_mask);
|
|
|
2543 FD_SET (infd, &temp_mask);
|
|
|
2544
|
|
|
2545 while (1)
|
|
|
2546 {
|
|
|
2547 Lisp_Object event;
|
|
|
2548 Emchar the_char;
|
|
|
2549
|
|
|
2550 if (!poll_fds_for_input (temp_mask))
|
|
|
2551 return;
|
|
|
2552
|
|
|
2553 event = Fmake_event (Qnil, Qnil);
|
|
|
2554 if (!read_event_from_tty_or_stream_desc (XEVENT (event), con, infd))
|
|
|
2555 /* EOF, or something ... */
|
|
|
2556 return;
|
|
|
2557 /* #### bogus. quit-char should be allowed to be any sort
|
|
|
2558 of event. */
|
|
|
2559 the_char = event_to_character (XEVENT (event), 1, 0, 0);
|
|
|
2560 if (the_char >= 0 && the_char == quit_char)
|
|
|
2561 {
|
|
|
2562 Vquit_flag = Qt;
|
|
|
2563 /* do not queue the C-g. See above. */
|
|
|
2564 return;
|
|
|
2565 }
|
|
|
2566
|
|
|
2567 /* queue the read event to be read for real later. */
|
|
|
2568 enqueue_Xt_dispatch_event (event);
|
|
|
2569 }
|
|
|
2570 }
|
|
|
2571
|
|
|
2572 static void
|
|
|
2573 emacs_Xt_quit_p (void)
|
|
|
2574 {
|
|
|
2575 Lisp_Object devcons, concons;
|
|
|
2576 CONSOLE_LOOP (concons)
|
|
|
2577 {
|
|
|
2578 struct console *con = XCONSOLE (XCAR (concons));
|
|
|
2579 if (!con->input_enabled)
|
|
|
2580 continue;
|
|
|
2581
|
|
|
2582 CONSOLE_DEVICE_LOOP (devcons, con)
|
|
|
2583 {
|
|
|
2584 struct device *d;
|
|
|
2585 d = XDEVICE (XCAR (devcons));
|
|
|
2586
|
|
|
2587 if (DEVICE_X_P (d) && DEVICE_X_DISPLAY (d))
|
|
|
2588 /* emacs may be exiting */
|
|
|
2589 x_check_for_quit_char (DEVICE_X_DISPLAY (d));
|
|
|
2590 else if (DEVICE_TTY_P (d))
|
|
|
2591 check_for_tty_quit_char (d);
|
|
|
2592 }
|
|
|
2593 }
|
|
|
2594 }
|
|
|
2595
|
|
|
2596 static void
|
|
|
2597 drain_X_queue (void)
|
|
|
2598 {
|
|
|
2599 while (XtAppPending (Xt_app_con) & XtIMXEvent)
|
|
|
2600 XtAppProcessEvent (Xt_app_con, XtIMXEvent);
|
|
|
2601 }
|
|
|
2602
|
|
|
2603 static int
|
|
|
2604 emacs_Xt_event_pending_p (int user_p)
|
|
|
2605 {
|
|
|
2606 Lisp_Object event;
|
|
|
2607 int tick_count_val;
|
|
|
2608
|
|
|
2609 /* If `user_p' is false, then this function returns whether there are any
|
|
|
2610 X, timeout, or fd events pending (that is, whether emacs_Xt_next_event()
|
|
|
2611 would return immediately without blocking).
|
|
|
2612
|
|
|
2613 if `user_p' is true, then this function returns whether there are any
|
|
|
2614 *user generated* events available (that is, whether there are keyboard
|
|
|
2615 or mouse-click events ready to be read). This also implies that
|
|
|
2616 emacs_Xt_next_event() would not block.
|
|
|
2617
|
|
|
2618 In a non-SIGIO world, this also checks whether the user has typed ^G,
|
|
|
2619 since this is a convenient place to do so. We don't need to do this
|
|
|
2620 in a SIGIO world, since input causes an interrupt.
|
|
|
2621 */
|
|
|
2622
|
|
|
2623 #if 0
|
|
|
2624 /* I don't think there's any point to this and it will nullify
|
|
|
2625 the speed gains achieved by the sigio_happened checking below.
|
|
|
2626 Its only advantage is that it may possibly make C-g response
|
|
|
2627 a bit faster. The C-g will be noticed within 0.25 second, anyway,
|
|
|
2628 even without this. */
|
|
|
2629 #ifndef SIGIO
|
|
|
2630 /* First check for C-g if necessary */
|
|
|
2631 emacs_Xt_quit_p ();
|
|
|
2632 #endif
|
|
|
2633 #endif
|
|
|
2634
|
|
|
2635 /* This function used to simply check whether there were any X
|
|
|
2636 events (or if user_p was 1, it iterated over all the pending
|
|
|
2637 X events using XCheckIfEvent(), looking for keystrokes and
|
|
|
2638 button events). That worked in the old cheesoid event loop,
|
|
|
2639 which didn't go through XtAppDispatchEvent(), but it doesn't
|
|
|
2640 work any more -- X events may not result in anything. For
|
|
|
2641 example, a button press in a blank part of the menubar appears
|
|
|
2642 as an X event but will not result in any Emacs events (a
|
|
|
2643 button press that activates the menubar results in an Emacs
|
|
|
2644 event through the stop_next_event mechanism).
|
|
|
2645
|
|
|
2646 The only accurate way of determining whether these X events
|
|
|
2647 translate into Emacs events is to go ahead and dispatch them
|
|
|
2648 until there's something on the dispatch queue. */
|
|
|
2649
|
|
|
2650 /* See if there are any user events already on the queue. */
|
|
|
2651 EVENT_CHAIN_LOOP (event, dispatch_event_queue)
|
|
|
2652 if (!user_p || command_event_p (event))
|
|
|
2653 return 1;
|
|
|
2654
|
|
|
2655 /* See if there's any TTY input available.
|
|
|
2656 */
|
|
|
2657 if (poll_fds_for_input (tty_only_mask))
|
|
|
2658 return 1;
|
|
|
2659
|
|
|
2660 if (!user_p)
|
|
|
2661 {
|
|
|
2662 /* If not user_p and there are any timer or file-desc events
|
|
|
2663 pending, we know there will be an event so we're through. */
|
|
|
2664 XtInputMask pending_value;
|
|
|
2665
|
|
|
2666 /* Note that formerly we just checked the value of XtAppPending()
|
|
|
2667 to determine if there was file-desc input. This doesn't
|
|
|
2668 work any more with the signal_event_pipe; XtAppPending()
|
|
|
2669 will says "yes" in this case but there isn't really any
|
|
|
2670 input. Another way of fixing this problem is for the
|
|
|
2671 signal_event_pipe to generate actual input in the form
|
|
|
2672 of an identity eval event or something. (#### maybe this
|
|
|
2673 actually happens?) */
|
|
|
2674
|
|
|
2675 if (poll_fds_for_input (process_only_mask))
|
|
|
2676 return 1;
|
|
|
2677
|
|
|
2678 pending_value = XtAppPending (Xt_app_con);
|
|
|
2679
|
|
|
2680 if (pending_value & XtIMTimer)
|
|
|
2681 return 1;
|
|
|
2682 }
|
|
|
2683
|
|
|
2684 /* XtAppPending() can be super-slow, esp. over a network connection.
|
|
|
2685 Quantify results have indicated that in some cases the
|
|
|
2686 call to detect_input_pending() completely dominates the
|
|
|
2687 running time of redisplay(). Fortunately, in a SIGIO world
|
|
|
2688 we can more quickly determine whether there are any X events:
|
|
|
2689 if an event has happened since the last time we checked, then
|
|
|
2690 a SIGIO will have happened. On a machine with broken SIGIO,
|
|
|
2691 we'll still be in an OK state -- the sigio_happened flag
|
|
|
2692 will get set at least once a second, so we'll be no more than
|
|
|
2693 one second behind reality. (In general it's OK if we
|
|
|
2694 erroneously report no input pending when input is actually
|
|
|
2695 pending() -- preemption is just a bit less efficient, that's
|
|
|
2696 all. It's bad bad bad if you err the other way -- you've
|
|
|
2697 promised that `next-event' won't block but it actually will,
|
|
|
2698 and some action might get delayed until the next time you
|
|
|
2699 hit a key.)
|
|
|
2700 */
|
|
|
2701
|
|
|
2702 /* quit_check_signal_tick_count is volatile so try to avoid race conditions
|
|
|
2703 by using a temporary variable */
|
|
|
2704 tick_count_val = quit_check_signal_tick_count;
|
|
|
2705 if (last_quit_check_signal_tick_count != tick_count_val)
|
|
|
2706 {
|
|
|
2707 last_quit_check_signal_tick_count = tick_count_val;
|
|
|
2708
|
|
|
2709 /* We need to drain the entire queue now -- if we only
|
|
|
2710 drain part of it, we may later on end up with events
|
|
|
2711 actually pending but detect_input_pending() returning
|
|
|
2712 false because there wasn't another SIGIO. */
|
|
|
2713 drain_X_queue ();
|
|
|
2714
|
|
|
2715 EVENT_CHAIN_LOOP (event, dispatch_event_queue)
|
|
|
2716 if (!user_p || command_event_p (event))
|
|
|
2717 return 1;
|
|
|
2718 }
|
|
|
2719
|
|
|
2720 return 0;
|
|
|
2721 }
|
|
|
2722
|
|
|
2723
|
|
|
2724 /************************************************************************/
|
|
|
2725 /* replacement for standard string-to-pixel converter */
|
|
|
2726 /************************************************************************/
|
|
|
2727
|
|
|
2728 /* This was constructed by ripping off the standard string-to-pixel
|
|
|
2729 converter from Converters.c in the Xt source code and modifying
|
|
|
2730 appropriately. */
|
|
|
2731
|
|
|
2732 #if 0
|
|
|
2733
|
|
|
2734 /* This is exported by the Xt library (at least by mine). If this
|
|
|
2735 isn't the case somewhere, rename this appropriately and remove
|
|
|
2736 the '#if 0'. Note, however, that I got "unknown structure"
|
|
|
2737 errors when I tried this. */
|
|
|
2738 XtConvertArgRec Const colorConvertArgs[] = {
|
|
|
2739 {XtWidgetBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.screen),
|
|
|
2740 sizeof(Screen *)},
|
|
|
2741 {XtWidgetBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.colormap),
|
|
|
2742 sizeof(Colormap)}
|
|
|
2743 };
|
|
|
2744
|
|
|
2745 #endif
|
|
|
2746
|
|
|
2747 #define done(type, value) \
|
|
|
2748 if (toVal->addr != NULL) { \
|
|
|
2749 if (toVal->size < sizeof(type)) { \
|
|
|
2750 toVal->size = sizeof(type); \
|
|
|
2751 return False; \
|
|
|
2752 } \
|
|
|
2753 *(type*)(toVal->addr) = (value); \
|
|
|
2754 } else { \
|
|
|
2755 static type static_val; \
|
|
|
2756 static_val = (value); \
|
|
|
2757 toVal->addr = (XPointer)&static_val; \
|
|
|
2758 } \
|
|
|
2759 toVal->size = sizeof(type); \
|
|
|
2760 return True /* Caller supplies `;' */
|
|
|
2761
|
|
|
2762 /* JH: We use this because I think there's a possibility this
|
|
|
2763 is called before the device is properly set up, in which case
|
|
|
2764 I don't want to abort. */
|
|
|
2765 extern struct device *get_device_from_display_1 (Display *dpy);
|
|
|
2766
|
|
|
2767 static
|
|
|
2768 Boolean EmacsXtCvtStringToPixel (
|
|
|
2769 Display *dpy,
|
|
|
2770 XrmValuePtr args,
|
|
|
2771 Cardinal *num_args,
|
|
|
2772 XrmValuePtr fromVal,
|
|
|
2773 XrmValuePtr toVal,
|
|
|
2774 XtPointer *closure_ret)
|
|
|
2775 {
|
|
|
2776 String str = (String)fromVal->addr;
|
|
|
2777 XColor screenColor;
|
|
|
2778 XColor exactColor;
|
|
|
2779 Screen *screen;
|
|
|
2780 Colormap colormap;
|
|
|
2781 Visual *visual;
|
|
|
2782 struct device *d;
|
|
|
2783 Status status;
|
|
|
2784 String params[1];
|
|
|
2785 Cardinal num_params = 1;
|
|
|
2786 XtAppContext the_app_con = XtDisplayToApplicationContext (dpy);
|
|
|
2787
|
|
|
2788 if (*num_args != 2) {
|
|
|
2789 XtAppWarningMsg(the_app_con, "wrongParameters", "cvtStringToPixel",
|
|
|
2790 "XtToolkitError",
|
|
|
2791 "String to pixel conversion needs screen and colormap arguments",
|
|
|
2792 (String *)NULL, (Cardinal *)NULL);
|
|
|
2793 return False;
|
|
|
2794 }
|
|
|
2795
|
|
|
2796 screen = *((Screen **) args[0].addr);
|
|
|
2797 colormap = *((Colormap *) args[1].addr);
|
|
|
2798
|
|
|
2799 /* The original uses the private function CompareISOLatin1().
|
|
|
2800 Use XmuCompareISOLatin1() if you want, but I don't think it
|
|
|
2801 makes any difference here. */
|
|
|
2802 if (strcmp(str, XtDefaultBackground) == 0) {
|
|
|
2803 *closure_ret = False;
|
|
|
2804 /* This refers to the display's "*reverseVideo" resource.
|
|
|
2805 These display resources aren't documented anywhere that
|
|
|
2806 I can find, so I'm going to ignore this. */
|
|
|
2807 /* if (pd->rv) done(Pixel, BlackPixelOfScreen(screen)) else */
|
|
|
2808 done(Pixel, WhitePixelOfScreen(screen));
|
|
|
2809 }
|
|
|
2810 if (strcmp(str, XtDefaultForeground) == 0) {
|
|
|
2811 *closure_ret = False;
|
|
|
2812 /* if (pd->rv) done(Pixel, WhitePixelOfScreen(screen)) else */
|
|
|
2813 done(Pixel, BlackPixelOfScreen(screen));
|
|
|
2814 }
|
|
|
2815
|
|
|
2816 /* Originally called XAllocNamedColor() here. */
|
|
|
2817 if ((d = get_device_from_display_1(dpy))) {
|
|
|
2818 visual = DEVICE_X_VISUAL(d);
|
|
|
2819 if (colormap != DEVICE_X_COLORMAP(d)) {
|
|
|
2820 XtAppWarningMsg(the_app_con, "wierdColormap", "cvtStringToPixel",
|
|
|
2821 "XtToolkitWarning",
|
|
|
2822 "The colormap passed to cvtStringToPixel doesn't match the one registerd to the device.\n",
|
|
|
2823 NULL, 0);
|
|
|
2824 status = XAllocNamedColor(dpy, colormap, (char*)str, &screenColor, &exactColor);
|
|
|
2825 } else {
|
|
|
2826 status = XParseColor (dpy, colormap, (char*)str, &screenColor);
|
|
|
2827 if (status) {
|
|
|
2828 status = allocate_nearest_color (dpy, colormap, visual, &screenColor);
|
|
|
2829 }
|
|
|
2830 }
|
|
|
2831 } else {
|
|
|
2832 /* We haven't set up this device totally yet, so just punt */
|
|
|
2833 status = XAllocNamedColor(dpy, colormap, (char*)str, &screenColor, &exactColor);
|
|
|
2834 }
|
|
|
2835 if (status == 0) {
|
|
|
2836 params[0] = str;
|
|
|
2837 /* Server returns a specific error code but Xlib discards it. Ugh */
|
|
|
2838 if (XLookupColor(DisplayOfScreen(screen), colormap, (char*) str,
|
|
|
2839 &exactColor, &screenColor)) {
|
|
|
2840 XtAppWarningMsg(the_app_con, "noColormap", "cvtStringToPixel",
|
|
|
2841 "XtToolkitError",
|
|
|
2842 "Cannot allocate colormap entry for \"%s\"",
|
|
|
2843 params, &num_params);
|
|
|
2844
|
|
|
2845 } else {
|
|
|
2846 XtAppWarningMsg(the_app_con, "badValue", "cvtStringToPixel",
|
|
|
2847 "XtToolkitError",
|
|
|
2848 "Color name \"%s\" is not defined", params, &num_params);
|
|
|
2849 }
|
|
|
2850
|
|
|
2851 *closure_ret = False;
|
|
|
2852 return False;
|
|
|
2853 } else {
|
|
|
2854 *closure_ret = (char*)True;
|
|
|
2855 done(Pixel, screenColor.pixel);
|
|
|
2856 }
|
|
|
2857 }
|
|
|
2858
|
|
|
2859 /* ARGSUSED */
|
|
|
2860 static void EmacsFreePixel (
|
|
|
2861 XtAppContext app,
|
|
|
2862 XrmValuePtr toVal,
|
|
|
2863 XtPointer closure,
|
|
|
2864 XrmValuePtr args,
|
|
|
2865 Cardinal *num_args)
|
|
|
2866 {
|
|
|
2867 if (*num_args != 2) {
|
|
|
2868 XtAppWarningMsg(app, "wrongParameters","freePixel","XtToolkitError",
|
|
|
2869 "Freeing a pixel requires screen and colormap arguments",
|
|
|
2870 (String *)NULL, (Cardinal *)NULL);
|
|
|
2871 return;
|
|
|
2872 }
|
|
|
2873
|
|
|
2874 if (closure) {
|
|
|
2875 Screen *screen = *((Screen **) args[0].addr);
|
|
|
2876 Colormap colormap = *((Colormap *) args[1].addr);
|
|
|
2877 XFreeColors(DisplayOfScreen(screen), colormap,
|
|
|
2878 (unsigned long*)toVal->addr, 1, (unsigned long)0);
|
|
|
2879 }
|
|
|
2880 }
|
|
|
2881
|
|
|
2882
|
|
|
2883 /************************************************************************/
|
|
|
2884 /* initialization */
|
|
|
2885 /************************************************************************/
|
|
|
2886
|
|
|
2887 void
|
|
|
2888 syms_of_event_Xt (void)
|
|
|
2889 {
|
|
|
2890 defsymbol (&Qkey_mapping, "key-mapping");
|
|
|
2891 defsymbol (&Qsans_modifiers, "sans-modifiers");
|
|
|
2892 }
|
|
|
2893
|
|
|
2894 void
|
|
|
2895 reinit_vars_of_event_Xt (void)
|
|
|
2896 {
|
|
|
2897 Xt_event_stream = xnew (struct event_stream);
|
|
|
2898 Xt_event_stream->event_pending_p = emacs_Xt_event_pending_p;
|
|
|
2899 Xt_event_stream->next_event_cb = emacs_Xt_next_event;
|
|
|
2900 Xt_event_stream->handle_magic_event_cb = emacs_Xt_handle_magic_event;
|
|
|
2901 Xt_event_stream->add_timeout_cb = emacs_Xt_add_timeout;
|
|
|
2902 Xt_event_stream->remove_timeout_cb = emacs_Xt_remove_timeout;
|
|
|
2903 Xt_event_stream->select_console_cb = emacs_Xt_select_console;
|
|
|
2904 Xt_event_stream->unselect_console_cb = emacs_Xt_unselect_console;
|
|
|
2905 Xt_event_stream->select_process_cb = emacs_Xt_select_process;
|
|
|
2906 Xt_event_stream->unselect_process_cb = emacs_Xt_unselect_process;
|
|
|
2907 Xt_event_stream->quit_p_cb = emacs_Xt_quit_p;
|
|
|
2908 Xt_event_stream->create_stream_pair_cb = emacs_Xt_create_stream_pair;
|
|
|
2909 Xt_event_stream->delete_stream_pair_cb = emacs_Xt_delete_stream_pair;
|
|
|
2910
|
|
|
2911 the_Xt_timeout_blocktype = Blocktype_new (struct Xt_timeout_blocktype);
|
|
|
2912
|
|
|
2913 last_quit_check_signal_tick_count = 0;
|
|
|
2914
|
|
|
2915 /* this function only makes safe calls */
|
|
|
2916 init_what_input_once ();
|
|
|
2917 }
|
|
|
2918
|
|
|
2919 void
|
|
|
2920 vars_of_event_Xt (void)
|
|
|
2921 {
|
|
|
2922 reinit_vars_of_event_Xt ();
|
|
|
2923
|
|
|
2924 dispatch_event_queue = Qnil;
|
|
|
2925 staticpro (&dispatch_event_queue);
|
|
|
2926 dispatch_event_queue_tail = Qnil;
|
|
|
2927 pdump_wire (&dispatch_event_queue_tail);
|
|
|
2928
|
|
|
2929 DEFVAR_BOOL ("modifier-keys-are-sticky", &modifier_keys_are_sticky /*
|
|
|
2930 *Non-nil makes modifier keys sticky.
|
|
|
2931 This means that you can release the modifier key before pressing down
|
|
|
2932 the key that you wish to be modified. Although this is non-standard
|
|
|
2933 behavior, it is recommended because it reduces the strain on your hand,
|
|
|
2934 thus reducing the incidence of the dreaded Emacs-pinky syndrome.
|
|
|
2935 */ );
|
|
|
2936 modifier_keys_are_sticky = 0;
|
|
|
2937
|
|
|
2938 DEFVAR_BOOL ("x-allow-sendevents", &x_allow_sendevents /*
|
|
|
2939 *Non-nil means to allow synthetic events. Nil means they are ignored.
|
|
|
2940 Beware: allowing emacs to process SendEvents opens a big security hole.
|
|
|
2941 */ );
|
|
|
2942 x_allow_sendevents = 0;
|
|
|
2943
|
|
|
2944 #ifdef DEBUG_XEMACS
|
|
|
2945 DEFVAR_INT ("x-debug-events", &x_debug_events /*
|
|
|
2946 If non-zero, display debug information about X events that XEmacs sees.
|
|
|
2947 Information is displayed on stderr. Currently defined values are:
|
|
|
2948
|
|
|
2949 1 == non-verbose output
|
|
|
2950 2 == verbose output
|
|
|
2951 */ );
|
|
|
2952 x_debug_events = 0;
|
|
|
2953 #endif
|
|
|
2954 }
|
|
|
2955
|
|
|
2956 /* This mess is a hack that patches the shell widget to treat visual inheritance
|
|
|
2957 the same as colormap and depth inheritance */
|
|
|
2958
|
|
|
2959 static XtInitProc orig_shell_init_proc;
|
|
|
2960
|
|
|
2961 static void ShellVisualPatch(Widget wanted, Widget new,
|
|
|
2962 ArgList args, Cardinal *num_args)
|
|
|
2963 {
|
|
|
2964 Widget p;
|
|
|
2965 ShellWidget w = (ShellWidget) new;
|
|
|
2966
|
|
|
2967 /* first, call the original setup */
|
|
|
2968 (*orig_shell_init_proc)(wanted, new, args, num_args);
|
|
|
2969
|
|
|
2970 /* if the visual isn't explicitly set, grab it from the nearest shell ancestor */
|
|
|
2971 if (w->shell.visual == CopyFromParent) {
|
|
|
2972 p = XtParent(w);
|
|
|
2973 while (p && !XtIsShell(p)) p = XtParent(p);
|
|
|
2974 if (p) w->shell.visual = ((ShellWidget)p)->shell.visual;
|
|
|
2975 }
|
|
|
2976 }
|
|
|
2977
|
|
|
2978 void
|
|
|
2979 init_event_Xt_late (void) /* called when already initialized */
|
|
|
2980 {
|
|
|
2981 timeout_id_tick = 1;
|
|
|
2982 pending_timeouts = 0;
|
|
|
2983 completed_timeouts = 0;
|
|
|
2984
|
|
|
2985 event_stream = Xt_event_stream;
|
|
|
2986
|
|
|
2987 #if defined(HAVE_XIM) || defined(USE_XFONTSET)
|
|
|
2988 Initialize_Locale();
|
|
|
2989 #endif /* HAVE_XIM || USE_XFONTSET */
|
|
|
2990
|
|
|
2991 XtToolkitInitialize ();
|
|
|
2992 Xt_app_con = XtCreateApplicationContext ();
|
|
|
2993 XtAppSetFallbackResources (Xt_app_con, (String *) x_fallback_resources);
|
|
|
2994
|
|
|
2995 /* In xselect.c */
|
|
|
2996 x_selection_timeout = (XtAppGetSelectionTimeout (Xt_app_con) / 1000);
|
|
|
2997 XSetErrorHandler (x_error_handler);
|
|
|
2998 XSetIOErrorHandler (x_IO_error_handler);
|
|
|
2999
|
|
|
3000 #ifndef WINDOWSNT
|
|
|
3001 XtAppAddInput (Xt_app_con, signal_event_pipe[0],
|
|
|
3002 (XtPointer) (XtInputReadMask /* | XtInputExceptMask */),
|
|
|
3003 Xt_what_callback, 0);
|
|
|
3004 #endif
|
|
|
3005
|
|
|
3006 XtAppSetTypeConverter (Xt_app_con, XtRString, XtRPixel,
|
|
|
3007 EmacsXtCvtStringToPixel,
|
|
|
3008 (XtConvertArgList) colorConvertArgs,
|
|
|
3009 2, XtCacheByDisplay, EmacsFreePixel);
|
|
|
3010
|
|
|
3011 #ifdef XIM_XLIB
|
|
|
3012 XtAppSetTypeConverter (Xt_app_con, XtRString, XtRXimStyles,
|
|
|
3013 EmacsXtCvtStringToXIMStyles,
|
|
|
3014 NULL, 0,
|
|
|
3015 XtCacheByDisplay, EmacsFreeXIMStyles);
|
|
|
3016 #endif /* XIM_XLIB */
|
|
|
3017
|
|
|
3018 /* insert the visual inheritance patch/hack described above */
|
|
|
3019 orig_shell_init_proc = shellClassRec.core_class.initialize;
|
|
|
3020 shellClassRec.core_class.initialize = ShellVisualPatch;
|
|
|
3021
|
|
|
3022 }
|
